JPH09326862A - Exchange service control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control the connection state even when an operation from a transfer destination and a party receiving transfer as well as from a transfer source by allowing a holding operator to recognize correctly the state of a party receiving hold in each of service functions such as hold and transfer. SOLUTION: A calling state of a party receiving hold is displayed on a hold receiving party call state display means 101 for a holding operator releasing hold. A transferred party in holding forcibly breaks or holds a transfer source party and connects to a transfer destination by a transferred party transfer source forced breaking means 102 or a transferred party transfer source holding means 103. The transfer destination in busy with the transfer source conducts a similar operation to above by using a transfer destination transfer source forced breaking means 105 or a transfer destination transfer source hold means 106. The interrupt speech is attained by a transferred party interrupt means 104 and a three-party speech including the transferred party from the transfer destination is attained by a transfer destination three-party speech configuration means 109, and voice call or lamp lighting control for the transfer source is attained from the transfer destination by a transfer destination voice call means 107 or a transfer destination lamp lighting control means 108.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exchange service control system in an exchange, and more particularly to an exchange service control system in an exchange having a holding function and a transfer function.

[0002]

2. Description of the Related Art "Holding service function" and "Transfer service function" are part of the diversifying switch service functions.
Is widely adopted.

The "holding service function" is a holding operation (for example, for holding) which is predetermined by one of the subscribers (hereinafter referred to as a holding operator) while the pair of subscribers are talking through the exchange. Selected special number or operating the hold function key provided on the telephone], the calling party subscriber (hereinafter referred to as the held person)
Call is temporarily suspended without releasing the call, and other functions than the call are performed, or as a part of the "transfer service function" to be described later, the transfer destination subscriber is called to make a call, and "call waiting service" As a part of the function (so-called call waiting service function), a call is made in response to a called subscriber during a call, and when the required errand ends, the hold operator performs a predetermined hold release operation (for example, for releasing the hold). Select the specified special number or re-operate the hold function key provided on the telephone] to return to the call state with the person to be held again and continue the interrupted call .

[0004] The held person who is on hold listens to an audible sound (a so-called hold sound) returned from the exchange when the handset is raised (in a so-called off-hook state). , If there is nothing but waiting for the hold operator to perform the hold release operation and resume the interrupted call, if the handset is put on hold (in the so-called on-hook state), the call on hold is disconnected. The call with the suspended operator cannot be resumed.

Further, the "transfer service function" is such that, while a pair of subscribers are making a call through an exchange, one of the subscribers (hereinafter, referred to as a transfer source) is a calling party subscriber (hereinafter, referred to as a transferee). And another subscriber [hereinafter referred to as a transfer destination], and a predetermined transfer operation [for example, a special number defined for transfer and a transfer destination subscriber number is selected, or Operate the provided function key for transfer, and then select the transfer destination subscriber number and) to put the transferee in a temporary hold state, then call the transfer destination and call the transferee. After requesting the call, the transfer source itself performs a recovery operation so that the transferee in the hold state can talk to the transfer destination.

[0006] Incidentally, the transferee, in the same way as in the "holding service function", until the transfer source can talk to the transfer destination,
There is no choice but to continue the off-hook state, listen to the hold tone, and wait for the call to the transfer destination.

[0007]

As is apparent from the above description, in the conventional exchange, when the "hold service function" or the "transfer service function" is used, the hold state is released or the transfer call state is changed. Completion is possible only by the operation of the hold operator or the transfer source, while the holdee or the transferee is forced to wait in the off-hook state while doing other work. There was a problem that it could not be done and was inconvenient.

For the purpose of solving such a problem, the invention "electronic exchange" [JP-A-6-133037, published May 13, 1994] (referred to as the first invention), the invention "private exchange" [JP-A-6 -232975, August 19, 1994
Published] (referred to as second invention), and invention "Hold release method from holdee side in private branch exchange" [JP-A-6-232974, published August 19, 1994] (with third invention) (Named) etc. are open to the public.

According to the first and second aspects of the present invention, the held person in the hold state shifts to the on-hook state after performing a predetermined registration operation, so that the hold operator and the held person hold the call. After the call is registered, the holdee waits for the hold release while on-hook, and when the hold operator executes the hold release operation, the holdee is called from the exchange and the call with the hold operator can be resumed. It is a thing.

A third aspect of the invention is intended for a private branch exchange using a terminal equipped with a speaker in addition to a handset, and when a person to be held in a hold state executes a predetermined hold release operation, the private branch exchange. Switches the terminal of the hold operator to the speaker listening state, and forms a call path to transmit the utterance from the held person to the speaker of the hold operator. It is possible to demand the cancellation of.

However, in the first and second inventions,
Although the hold operator expects to immediately shift to the call state with the person to be held when the person to be held executes the hold release operation as if the person to be held is waiting in the off-hook state,
While calling the person on hold who is waiting in the on-hook state, you will be able to hear the ringing tone that is used during normal call setup, misidentifying that you have entered a state different from releasing hold, and release the call on hold. I was afraid to do it.

Further, in the "transfer service function", when the transfer source is on-hook and the handset is not correctly on-hook, the call between the transfer destination and the transferee cannot be started at any time. However, there has been a problem that the transfer destination and the transferee cannot perform any solution operation.

According to the present invention, in the hold service function,
The primary purpose is to enable the hold operator to correctly recognize the status of the held person when the held person is on-hook and waiting to release the hold. Of course, the second purpose is to make it possible to control the connection state by the operations of the transfer destination and the transferee.

[0014]

FIG. 1 is a diagram illustrating the principle of the present invention. In FIG. 1, reference numeral 100 is an exchange subject to the present invention, 2 is a subscriber accommodated in the exchange (100), 2 _HS is a hold operator, 2 _HP is a holdee, and 2 _TP is a transferee. , 2 _TS indicates a transfer source, and 2 _TD indicates a transfer destination.

Reference numeral 101 is a display means for calling the person to be held, which is provided in the exchange (100) according to the present invention (Claim 1). 102 is an exchange (10) according to the present invention (Claim 2).
It is a transfer source forced disconnection means provided in 0).

Reference numeral 103 denotes a transferee transfer source holding means provided in the exchange (100) according to the present invention (claim 3). 104 is an exchange (10) according to the present invention (Claim 4).
It is a transferee interrupt means provided in 0).

Reference numeral 105 denotes a transfer destination transfer source forced disconnection means provided in the exchange (100) according to the present invention (claim 5). Reference numeral 106 denotes an exchange (1) according to the present invention (Claim 6).
00) is a transfer destination transfer source holding means.

Reference numeral 107 denotes a transfer destination voice calling means provided in the exchange (100) according to the present invention (claim 7).
108 is an exchange (100) according to the present invention (Claim 8).
It is a transfer destination lamp lighting control means provided in the.

Numeral 109 is a transferee three-party call composing means provided in the exchange (100) according to the present invention (claim 9). 110 is an exchange (1) according to the present invention (claim 10).
00) is a transfer source re-calling means after the transfer call.

The exchange (100) is the present invention (Claim 1).
In the case, when the subscriber in the call executes the predetermined hold operation as the hold operator (2 _HS ) to put the called party's subscriber on hold as the hold person (2 _HP ), the hold party (2 _HP ) has a hold function that lowers the handset and waits for hold release.

The on-holdee call-in-progress display means (101) calls the on-hold person (2 _HP ) when the on-hold operator (2 _HS ) who performed the on-hold operation executes a predetermined on-hold cancel operation, and An audible display for returning a predetermined ringing tone indicating that the held person (2 _HP ) is being called to the hold operator (2 _HS ),
When the hold operator (2 _HS ) is provided with a display, at least one of the visible display for returning predetermined character information indicating that the held person (2 _HP ) is being called is executed. .

In the present invention (claims 2 to 10), the exchange (100) is a transfer source (2 _TS ) of the subscriber who is talking.
After performing a predetermined transfer operation as a call, temporarily setting the called party as the transferee (2 _TP ) and then calling another subscriber as the transfer destination (2 _TD ) and requesting the transfer. , The transfer function to start the transfer call between the transfer destination (2 _TD ) and the transferee (2 _TP ).

Transferee transfer source forced disconnection means (102)
Is the transferee (2_TP) Is the transfer destination
(2_TD) Is being called or the transfer destination (2_TD) During a call
Sender (2_TS) Forced cutting operation specified for forced cutting
If you execute the_TS) Forcibly disconnecting
Forwarder (2_TP) To the transfer destination (2_TD) Is ringing or transferred
Destination (2 _TD) And make a transition to the state of talking.

[0024] the transferor transfer source holding means (103), the transfer who is on hold (2 _TP) is transferred in a call with the destination calling the (2 _TD) or destination, (2 _TD) Original (2 _TS )
When the specified hold operation is executed to move the transfer destination (2 _TS ) to the hold state, the transfer source (2 _TS ) is transferred to the hold state, and the transferee (2 _TP ) and the transfer destination (2 _TD ) are being called. _{Alternatively} , move to the state of talking to the transfer destination (2 _TD ).

The transferee interrupting means (104) is defined so that the transferee (2 _TP ) in the hold state interrupts the transfer destination (2 _TD ) and the transfer source (2 _TS ) in communication. When the interrupted operation is performed, the transferee (2 _TP ) is transferred to the transfer destination (2 _TD ) and the transfer source (2 _TS ) in the call to the interrupted state.

The transfer destination transfer source forced disconnection means (105) is
Transfer source (2_TS) And the transfer destination (2_TD) Is the transfer destination
(2_TD) And the transfer source (2_TS) To forcibly disconnect
When the specified forced disconnection operation is executed, the transfer source (2
_TS) Is forcibly disconnected, and the transfer destination (2 _TD) Transferee (2_TP)
And shift to the busy state.

The destination transfer source holding means (106), pending transfer source (2 _TS) and the busy destination (2 _TD) is the transfer destination (2 _TD) and busy transfer source a (2 _TS) When the specified hold operation is executed to shift to the state, the transfer source (2 _TS ) is shifted to the hold state and the transfer destination (2 _TD ) is in a call with the transferee (2 _TP ). Move.

The destination voice call means (107), the transfer source (2 _TS) and the busy destination (2 _TD) is the transfer source (2 _TS)
When the voice call operation specified to switch the telephone terminal of the above from the listening state by the handset to the listening state by the speaker is performed, the telephone terminal of the transfer source (2 _TS ) is received by the speaker from the listening state by the handset. The state is switched to a state in which transmission from the transfer destination (2 _TD ) can be received by the speaker.

The transfer destination lamp lighting control means (108)
The transfer source (2 _TS ) and the transfer destination (2 _TD ) in a call control the lighting state of the lamp device provided in at least one of the transfer source (2 _TS ) and the transferee (2 _TP ) When the lamp lighting control operation that is set to perform the above is executed, the lighting state of the lamp device of at least one of the transfer source (2 _TS ) and the transferee (2 _TP ) is set to the transfer destination (2 _TD). ) To a controllable state.

The transfer destination three-party call composing means (109)
Sender (2_TS) And the transfer destination (2 _TD) Is the transfer source (2
_TS) And transfer destination (2_TD) To the callee (2_TP)
When performing a three-way call operation that is defined to add
The transfer source (2_TS) And transfer destination (2_TD) Transferred to call
Person (2_TP) Join and configure a three-way call.

After transfer call, transfer source re-call means (110)
After the transfer call ends when the transfer destination (2 _TD ) and the transfer source (2 _TS ) in a call make a transfer call between the transferee (2 _TP ) and the transfer destination (2 _TD ). , When the re-call registration operation is performed after the transfer call, which is set to make a call again with the transferee (2 _TP ) or the transfer destination (2 _TD ), the transfer source (2 _TS )
Transfer destination (2 _TD ) designated as the registrant and the party to call again
Alternatively, the transferee (2 _TP ) is registered as a registered person, and after the registered person finishes the transfer call, the called person is called again to establish a state in which the registered person and the registered person can call again.

Therefore, according to the present invention (Claim 1), when the person to be put on hold who is waiting for the release of the hold by calling down the handset is called, the person to be put on hold is calling the person to be put on hold by releasing the hold. The audible display or the visible display eliminates the risk that the holding operator may mistake the calling state for another, and according to the present invention (Claim 2), the transferee who is in the holding state during the transfer service has a predetermined number. By performing the operation
It is possible to prevent the transfer source from being forcibly disconnected and transiting to the state where the transfer destination is ringing or talking to the transfer destination, and it is possible to prevent the transfer source from being left in the hold state for a long time due to the convenience of the transfer source. According to item 3), the transferee in the hold state performs a predetermined operation during the transfer service, so that the transfer source is put in the hold state and the transfer destination is in a calling state or is in a call with the transfer destination. However, it is possible to prevent the transfer source from being left in a holding state for a long time due to the convenience of the transfer source, and the present invention (Claim 4).
According to this, the transferee in the hold state during the transfer service executes a predetermined operation to interrupt the call between the transfer source and the transfer destination, and is left in the hold state for a long time for the convenience of the transfer source. According to the present invention (Claim 5), the transfer source and the transfer destination during a call perform a predetermined operation during the transfer service to forcibly disconnect the transfer source and transferee. It becomes possible to prevent the call from the transferee from being delayed for a long time due to the transfer source, and according to the present invention (Claim 6), the transfer source is transferred during the transfer service. And the transfer destination during a call performs a predetermined operation to put the transfer source in the hold state and transit to a state in which the transfer destination is in a call, and the call with the transfer destination is delayed for a long time due to the transfer source's convenience. Can be prevented, and according to the present invention (Claim 7), transfer can be performed. By performing a predetermined operation between the transfer source and the transfer destination during a call, the transfer source's reception is switched from the handset to the speaker, and a voice call from the transfer destination is heard on the speaker. Therefore, it is possible to prevent a delay in the call with the transferee for a long time, and according to the present invention (Claim 8), the transfer source and the transfer destination during the call perform a predetermined operation during the transfer service. By controlling the lighting of the lamp device provided in the transfer source or the transferee from the transfer destination, it is possible to prevent the call from the transferee from being delayed for a long time due to the convenience of the transfer source. According to (Claim 9), the transfer source and the transfer destination during the call perform a predetermined operation during the transfer service, so that the transferee also participates in the call to enable the three-way call. Long time due to transfer source It is possible to prevent the call to the transferee from being delayed, and according to the present invention (Claim 10), the transfer source which initiates the call between the transferee and the transfer destination during the transfer service performs a predetermined operation. By executing the call, the transferee or the transfer destination can call again after the end of the call to make a call, and it becomes possible to listen to the content of the transfer call, and the convenience of the holding service or transfer service of the exchange. Is greatly improved.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 2 is a diagram showing an exchange according to an embodiment of the present invention (Claim 1), FIG. 3 is a diagram exemplifying a display type table during a call to person to be held in FIG. 2, and FIG. 4 is an audible display in FIG. FIG. 6 is a diagram illustrating a type table, FIG. 5 is a diagram illustrating a visible display type table in FIG. 2, and FIG. 6 is a diagram illustrating a held person status display process for a holding operator in FIG. 7 is a diagram showing an exchange according to an embodiment of the present invention (claim 2),
8 is a diagram showing an example of the transfer service status management table in FIG. 7, FIG. 9 is a diagram showing an example of the transfer source forced disconnection process by the transferee in FIG. 7, and FIG. ) Is a diagram illustrating an exchange according to an embodiment of the present invention, FIG. 11 is a diagram illustrating a transfer source holding process by the transferee in FIG. 10, and FIG. 12 is a diagram illustrating an exchange according to an embodiment of the present invention (claim 4). 13 is a diagram illustrating an interrupt process by the transferee in FIG. 12, FIG. 14 is a diagram illustrating an exchange according to an embodiment of the present invention (claim 5), and FIG. FIG. 16 is a diagram exemplifying the forced disconnection processing of the transfer source by the transfer destination in FIG.
FIG. 17 is a diagram showing an exchange according to an embodiment of the present invention (claim 6), FIG. 17 is a diagram exemplifying transfer source holding processing by a transfer destination in FIG. 16, and FIG. 18 is the present invention (claim 7). 19 is a diagram showing an exchange according to an embodiment of the present invention, FIG. 19 is a diagram illustrating a speaker call processing to a transfer source by a transfer destination in FIG. 18, and FIG. 20 shows an exchange according to the embodiment of the present invention (claim 8). 21 is a diagram showing FIG.
22 is a diagram exemplifying the special number-lamp control pattern type table in FIG. 22, FIG. 22 is a diagram exemplifying the lamp lighting state control processing of the transfer source / transferee by the transfer destination in FIG. 20, and FIG. FIG. 24 is a diagram showing an exchange according to an embodiment of Item 9), FIG. 24 is a diagram illustrating a three-way call processing by the transfer destination in FIG. 23, and FIG. 25 is an exchange according to the embodiment of the present invention (Claim 10). 26 is a diagram exemplifying the transfer source operation waiting registration table in FIG. 25, FIG. 27 is a diagram exemplifying the registrant status management table in FIG. 25, and FIG. 28 is FIG.
29 is a diagram exemplifying a transfer source operation waiting allowable time table in FIG. 29, FIG. 29 is a diagram exemplifying a transfer source operation recall allowable time table in FIG. 25, and FIG. 30 is an example of a registered person state management table in FIG. 31 is a diagram exemplifying the transfer source operation waiting ring back tone type table in FIG. 25, and FIG. 32 is a diagram exemplifying the re-call processing after the transfer call in FIG. 25. The same reference numerals indicate the same objects throughout the drawings.

First, the embodiment of the present invention (claim 1) is
This will be described with reference to FIGS. FIG. 2 shows the exchange (1) as the exchange (100) in FIG.

The exchange (1) shown in FIG. 2 includes a network (NW) (11), a control unit (CTL) (12), a storage unit (MEM) (13) and a signal sound source (TNS) (1).
4) is provided.

The network (NW) (11) has a plurality of subscribers (2) [individual subscribers are referred to as (2 ₁ ), (2 ₂ ), etc.]. The same shall apply hereinafter] and a signal sound source (TNS) for transmitting various audible signal sounds to each subscriber (2).
(14) is also housed.

Note that each of the subscribers (2 ₁ ) to (2 ₄ ) shown in FIG. 2 has a subscriber number (DN) of (2).
000) _{D to} (2003) _D [where (X) _D represents a decimal number. The same applies to the following].

In the control unit (CTL) (12), the held person waiting service control unit (121) and the sound source connection control unit (1)
22) and the display display control unit (123), and in the storage unit (MEM) (13), the display type table (131) for calling the person on hold and the audible display type table (1).
32) and the visible display type table (133) are shown in FIG.
It is provided to serve as the display means (101) for calling the person to be held.

In the exchange (1) shown in FIG. 2,
For example, while the subscribers (2 ₁ ) and (2 ₃ ) are in a call, the subscriber (2 ₃ ) performs a predetermined hold operation as a hold operator (2 _HS ) to call the other party (2 ₁ ). Holdee (2
After setting the hold status as _HP ), the hold operator (2 ₃ ) executes a predetermined hold release operation while the held person (2 ₁ ) waits for the hold release to cancel the call. to resume, when calling to be held party during waiting on-hook state, to hold the operator (2 _3), a presently be held party (2 ₁₎ the ringing, the general call setup It is provided with a function of recognizing that the caller is not in a ringing state by an audible and visual display which can be distinguished from an audible display [listening to a ringing tone] at the time of general call setup.

In the audible display, the sound source connection control unit (122) in the control unit (CTL) (12) is activated to connect the signal sound source (TNS) (14) and the hold operator (2 ₃ ) to the network ( NW) (11) is connected, a predetermined signal sound indicating that the person to be held is being called is generated in the signal sound source (TNS) (14) and transmitted to the holding operator (2 ₃ ). it is intended to listen by the telephone handset to be used pending operator (2 _3).

Further, the visible display indicates that the operator (2_Three) Is
When using a display-equipped telephone, etc.
(CTL) (12) Display control unit (12)
By activating 3), make sure that the held person is calling.
The predetermined character information indicating and is generated, and the control unit (CTL)
(12) and the hold operator (2_Three) And the communication path (p
_Four) In the network (NW) (11),
Preserves character information generated by the spray display control unit (123).
Foreign operator (2_Three) And hold operator (2_Three)Use of
To display it on the display of the telephone
You.

It should be noted that what kind of display type should be adopted for the hold operator (2 ₃ ) is a display type table (131) during call of the person to be held in the storage unit (MEM) (13) and an audible display type table ( 132) and the visible display type table (133).

Display Type Table (13
1) is for the hold operator (2) as shown in FIG.
Audible display and visual display are adopted.
(CL ₁), The visual audible display type
Another (CL₁) = (1)_DUses both audible and visual display
It indicates that the visual audible display type (CL₁) = (2)_D
Indicates that only the audible display is adopted, and the visible audible display type
Another (CL₁) = (3)_DAdopt only visible display
Indicates the visible audible display type (CL₁) = (3)_DIs which
Indicates that the display of will not be adopted.

The visual audible display type (CL ₁ ) is determined for the entire exchange (1), and for each group (GR) composed of a plurality of subscribers (2), and further for each individual subscriber (2). ) Unit, and the determination unit is designated by the group (GR) and the group number (GRN).

Group (GR) and group number (G
RN) is (0)_DThrough (100) _DValue in the range
Group (GR) = (0)_DThrough (99)_DIs
Indicates a loop number (GRN) and group (G
R) = (100)_DIs a audible display for each subscriber (2)
Type (CL₁) Is to be determined.

Group number (GRN) = (0) _D is a visual audible display type (C
L ₁ ) is adopted, and the group number (GR
N) = (1) _{D to} (99) _D indicates that the visible audible display type (CL ₁ ) determined for each group (GR) is adopted.

Next, the audible display type table (132) is
As shown in FIG. 4, when the audible display is adopted for the hold operator (2), the type of the audible display to be adopted is designated by the ringing tone type (CL ₂ ). ₂ ) = (1) _D indicates that silence is adopted, that is, audible display is not adopted, and ringing tone type (CL ₂ ) =
(2) _D indicates that a continuous sound of 400 hertz is adopted, and ringing tone type (CL ₂ ) = (3) _D indicates that a continuous sound of 500 hertz is adopted. Each of the ringing tones described above is different from the ringing tone [intermittent tone of a predetermined frequency] that is used during general call setup.

The ringing tone type (CL ₂ ) is the same as that of the above-mentioned visible and audible display type (CL ₁ ) and is based on the exchange (1) unit,
It is possible to determine by group (GR) unit or subscriber (2) unit, and the designation method by the group (GR) and the group number (GRN) is also used, and the display type table (131) for the person being held is called. Is the same as.

Further, when the visual display is adopted, the control unit (CTL) (12) is capable of displaying in two types, that is, the Japanese sentence "calling the person on hold" and the English sentence "CALL". Note to hold the operator (2 _3), whether to adopt any visual display, are specified in the storage unit (MEM) (13) audible indication type table in (132).

Further, the visible display type table (133) is
As shown in FIG. 5, a table visible to the holding operator (2)
When adopting the indication, the type of visual display to be adopted
Display type (CL_Three) Is specified by the
Type (CL_Three) = (1)_DAdopts no display, that is, yes
Indicates that visual display is not adopted, and the visual display type (C
L _Three) = (2)_DAdopts the Japanese sentence "Calling the person on hold"
That the visual display type (CL_Three) = (3)_DIs English
Indicates to adopt the sentence "CALL".

The visual display type (CL ₃ ) is the visual audible display type (CL ₁ ) and ring tone type (CL ₂ ) described above.
Similarly, the exchange (1) unit, the group (GR) unit,
Also, it is possible to decide on a subscriber (2) basis,
Group (GR) and group number (GR
The designation method by N) is also the same as the display type table during holdee call (131) and the audible display type table (132).

2 to 6, while the subscriber (2 ₁ ) and the subscriber (2 ₃ ) are talking over the network (NW) (11), the subscriber (2 ₃ ) performs a holding operation. By performing a predetermined hold operation as a person (2 _HS ),
After setting the subscriber (2 ₁ ) as a held person (2 _HP ) on hold, the held person (2 ₁ ) performs a predetermined on-hook hold release waiting operation to wait for on-hook release. in it are state, in order to hold the operator (2 ₃₎ to resume a call on hold, when executing a predetermined hold release operation, the control unit (CTL) (12) to be held party waiting service control unit in the ( 121) is activated.

When the activated person-to-be-held service control unit (121) identifies that the person-to-be-held (2 ₁ ) is in the on-hook state, it executes the processing for calling the person-to-be-held (2 ₁ ) before executing the processing. [FIG. 6, Step S61] Reference is made to the display type table (131) during call of person to be held in the storage unit (MEM) (13) [Step S62].

Display type table (13
In 1), the group (G) corresponding to the holding operator (2 ₃ ) [subscriber number (DN) of (2) _D ]]
R) is set to (0) _D , so the group number (G
RN) = (0) _D , that is, the visible audible display type (CL ₁ ) determined for each exchange (1) is searched, and the visible audible display type (CL ₁ ) = (1) _D is set. , Audible and visible display are determined to be used together (step S63).

Then, the holdee waiting service control unit (12
1) refers to the audible display type table (132) in the storage unit (MEM) (13) [step S65]. In the audible display type table (132), the group (GR) corresponding to the holding operator (2 ₃ ) [subscriber number (DN) = (2002) _{D of} [ ₃ ]] is set to (0) _D. Group number (GRN) = (0) _D , that is, the ringing tone type (CL ₂ ) determined for each exchange (1) is searched, and the ringing tone type (CL ₂ ) = (2) _D is set. Therefore, it is determined that the continuous sound of 400 Hz is adopted [step S66].

When the ringing tone type (CL ₂ ) is determined to be a continuous tone of 400 hertz as described above, the held person waiting service control unit (121) activates the sound source connection control unit (122), and the network (NW) (11) ), The hold operator (2 ₃ ) is connected to the signal sound source (TNS) (14), and the signal sound source (TNS) (14) is controlled to generate a continuous sound of 400 Hertz to hold the operator (2). 2 ₃ ) and make it listen [Step S68].

Subsequently, the holdee waiting service control unit (12
1) refers to the visible display type table (133) in the storage unit (MEM) (13) [step S69]. In the visible display type table (133), the group (GR) corresponding to the holding operator (2 ₃ ) [subscriber number (DN) = (2002) _{D of} [ ₃ ]] is set to (0) _D. The group number (GRN) = (0) _D , that is, the visible display type (CL ₃ ) determined for each exchange (1) is searched, and the visible display type (CL ₃ ) = (2) _D is set. From this, it is determined that the Japanese sentence "calling on hold person" is adopted [step S6A].

When the visible display type (CL ₃ ) is determined to be "calling on holdee", the holdee waiting service control unit (121) activates the display display control unit (123) to display "holdee on hold". to produce character information in call ", and the connection control unit (CTL) (12) and hold the operator and (2 ₃₎ via the network (NW) (11), display the display control section of the (123) transmits the character information to be generated hold operator (2 _3), it is visible on the display of the phone to be used pending operator (2 ₃₎ [step S6
C].

As described above, when the audible and visual display of the call to person to be held by the hold operator (2 ₃ ) is executed,
The held person waiting service control unit (121) executes a predetermined holding release process [step S6D].

Next, while the subscriber (2 ₂ ) and the subscriber (2 ₄ ) are talking over the network (NW) (11), the subscriber (2 ₄ ) holds the hold operator (2 _HS). ), The subscriber (2 ₂ ) is put on hold as a person to be held (2 _HP ) and then the person to be held (2 ₂ ) performs a predetermined on-hook hold release waiting operation. When the hold operator (2 ₄ ) executes a predetermined hold release operation in order to resume the call on hold while executing on-hook and waiting for the hold release, the control is performed as described above. The holdee waiting service control unit (121) in the unit (CTL) (12) is activated.

When the holdee waiting service control unit (121) that has been activated identifies that the holdee (2 ₂ ) is in the on-hook state, the storage unit (MEM), as described above.
Display type table during call of person to be held in (13) (13
Refer to 1) [steps S61 and S62].

Display type table (13
In 1), the group (G) corresponding to the hold operator (2 ₄ ) [subscriber number (DN) of (=) (2003) _D ]
R) is set to (100) _D , so the visible and audible display type (CL ₁ ) is determined for each subscriber (2 ₄ ).
And the visible and audible display type (CL ₁ ) = (1) _D is set, it is determined to use both audible and visible display [step S64].

Subsequently, the holdee waiting service control unit (12
1) refers to the audible display type table (132) in the storage unit (MEM) (13) as in the above [step S65].

In the audible display type table (132), the holding operator (2 ₄ ) [subscriber number (DN) = (2
The group (GR) corresponding to (003) _D ] is (100)
_Since it is set to _D , the ringing tone type (CL ₂ ) determined for each subscriber (2 ₄ ) is extracted, and the ringing tone type (C
Since L ₂ ) = (2) _D is set, it is determined that 400 Hz continuous sound is adopted [step S6].
7].

When the ringing tone type (CL ₂ ) is determined to be a continuous tone of 400 hertz as described above, the held person waiting service control unit (121) activates the sound source connection control unit (122), and the network (NW) (11) ), The hold operator (2 ₃ ) is connected to the signal sound source (TNS) (14), and the signal sound source (TNS) (14) is controlled to generate a continuous sound of 400 Hertz to hold the operator (2). 2 ₃ ) and make it listen [Step S68].

Subsequently, the holdee waiting service control unit (12
1) refers to the visible display type table (133) in the storage unit (MEM) (13) as in the above (step S69).

In the visible display type table (133), the subscriber number (DN) of the holding operator (2 ₄ ) [is (2)
The group (GR) corresponding to (003) _D ] is (100)
_Since it is set to _D , the visible display type (CL ₃ ) determined for each subscriber (2 ₄ ) is extracted and the visible display type (C 3
Since L ₃ ) = (2) _D is set, it is determined that the Japanese sentence “calling on hold” is adopted [step S6B].

When the visible display type (CL ₃ ) is determined to be "calling on holdee", the holdee waiting service control unit (121) activates the display display control unit (123), to produce character information in call ", and the connection control unit (CTL) (12) and hold the operator and (2 ₃₎ via the network (NW) (11), display the display control section of the (123) The generated character information "calling of the held person" is transmitted to the hold operator (2 ₃ ), and the hold operator (2 3
It is displayed visually on the display of the telephone used in ₃ ) [step S6C].

As a result of the above, when the audible and visual display of the call to person to be held by the hold operator (2 ₃ ) is executed,
The held person waiting service control unit (121) executes a predetermined holding release process [step S6D].

The visible-audible display type (CL ₁ ), the ringing tone type (CL ₂ ) and the visible display type (CL ₃ ) are uniformly determined for each exchange (1), and thus the held person calling display type table (131), the audible display type table (132) and the visible display type table (133) can be omitted.

Next, an embodiment of the present invention (claim 2) will be described.
This will be described with reference to FIGS. 7 to 9. In FIG. 7, the exchange (1) is shown as the exchange (100) in FIG.

Similarly to the exchange (1) shown in FIG. 2, the exchange (1) shown in FIG. 7 also has a network (NW).
(11), control unit (CTL) (12), storage unit (ME
M) (13) and a signal source (TNS) (14).

Note that each of the subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 7 has a subscriber number (DN) of (2
000) _{D to} (2002) _D are given. In the control unit (CTL) (12), a transfer control unit (124),
Sound source connection control unit (122), transfer executability notification control unit (125), transfer source disconnection advance notice control unit (126), time management control unit (127), transfer source disconnection control unit (128), and lamp control unit (129). ) Is also the memory unit (MEM)
In (13), the transfer service status management table (13
4), transfer executability notification table (135), transfer source forced disconnection notice table (136), notice target table (1)
37), the forced disconnection mode release table (138) and the post-advance transfer source disconnection method table (139) are provided to serve as the transferee transfer source forced disconnection means (102) in FIG.

In FIG. 7, while the subscribers (2 ₁ ) and (2 ₂ ) accommodated in the exchange (1) are in a call, the subscriber (2 ₂ ) switches the other party of the call (2 ₁ ) to the other party. Subscribers (2
₃ )), the subscriber (2 ₂ ) becomes the transfer source (2 _TS ), the subscriber (2 ₁ ) of the calling party is the transferee (2 _TP ), and the other subscribers (2 2) 2 ₃ ) as the transfer destination (2 _TD ), in the process of executing the predetermined transfer operation, the transferee (2 ₁ ) performs a predetermined transfer source forced disconnection operation [for example, after hooking, then the transfer source forced disconnection Dial the special number specified in step 1 or operate the function button provided on the telephone for forcibly disconnecting the transfer source, etc., to forcibly disconnect the transfer source (2 ₂ ) and The transfer person (2 ₁ ) and the transfer destination (2 ₃ ) can communicate with each other.

Transfer service status management table (134)
As shown in FIG. 8, the current state (ST) of the subscriber (2) [transfer source] who is executing the transfer service is stored in association with the subscriber number (DN). ST) =
(1) _D indicates that the transfer destination is in a calling state, state (ST) = (2) _D indicates that a call is being made to the transfer destination or the transferee, and further state (ST) = (3) _D is
Indicates that a state other than the above (for example, dialing) is present.

A transfer executability notification table (135)
Is the transferee (2_TP) Is the transfer source (2 _TS) Can be forcibly disconnected
Notification flag that specifies whether to notify that
(F _Five), And when performing the notification
Is a notification permission flag (f_Five) Is set to logical "0" and notification
If not executed, the notification permission flag (f_Five) Logic
Set to "1".

Further, the transfer source forced disconnection notice table (13
6), prior to force cut transfer source (2 _TS), the transfer source (2 _TS) or destination (notice possibility flag that specifies whether to notice that it is forced cut into 2 _TD) (f ₆ ), the advance notice flag (f ₆ ) is set to logical “0” when the advance notice is executed, and the advance notice flag (f ₆ ) is set to logical “1” when the advance notice is not executed. Set to ".

Further, the notice target table (137) is compulsory.
When announcing the disconnection, the transfer source (2 _TS) Or forwarding destination
(2_TD) For which the notification target flag that determines the notification
Gu (f ₇), And the transfer source (2_TS) And
And transfer destination (2_TD) If you give notice to both
Lag (f₇) = (1)_DSet to, and transfer source (2_TS)
If you give a notice only to the notice target flag (f₇) =
(2)_DTo the destination (2_TD) Only
In this case, the target flag (f₇) = (3)_DSet to
You.

The forced disconnection mode release table (13
8) specifies whether or not the _notified transfer source (2 _TS ) or transfer destination (2 _TD ) can cancel the forced disconnection mode set by the transferee (2 _TP ). It holds a release permission flag (f ₈ ) to be released. When the forced disconnection mode can be released, the release permission flag (f ₈ ) is set to logical “0”. The cancellation permission flag (f ₈ ) is set to logic “1”.

After the advance notice, the transfer source disconnection method table (13
9) is the transfer source (2 _TS) Forcibly disconnect
Cutting method flag (f₉)
Is automatically shut off after a predetermined time has passed after the notice.
When disconnecting, disconnection method flag (f₉) = Logical "0"
Set and transferee (2_TP) Does the operation again
When you forcibly disconnect by executing
(F₉) = Set to logic “1”.

The notification permission flag (f_Five) Or cutting method
Flag (f₉) Prior to operating the switch (1)
Then, a maintenance person, etc. can make settings from a maintenance console (not shown).
You. 7 to 9, the transfer source (2_TS) Is a subscription
Person (2_Two) Is the transferee (2 _TP) Is a subscriber (2₁)When
During a call, transfer destination (2_TD) Is a subscriber (2_Three) Transfer to
When the transfer operation is performed, the exchange (1)
The control unit (CTL) (12) controls the transfer control unit (124).
Start and transferee (2₁) Is on hold, transfer source (2_Two)
Forward to (2_Three) Calling state, transfer destination (2_Three) Call
State (FIG. 9, step S91), and the storage unit (ME
M) Transfer service status management table (13) in (13)
Transfer source (2) in 4)_Two) [Subscriber number (DN) =
(2001)_D] (1) the state (ST) corresponding to_DTo
Update [step S92].

The transfer executability notification control unit (125) in the control unit (CTL) (12) monitors changes in the status (ST) of the transfer service status management table (134).
When it is detected that the status (ST) of the transfer source (2 ₂ ) is updated to (1) _D , the transfer executability notification table (135) in the storage unit (MEM) (13) is referred to, and the notification enable / disable flag is set. When it is identified that (f ₅ ) is already set to logic “0” [step S93], the transferee (2 ₁ ) is notified that the transfer source (2 ₂ ) can be forcibly disconnected. Activate the sound source connection control unit (122), and connect to the network (NW)
The transferee (2 ₁ ) is sent to the signal source (TN) via (11).
S) (14) to control a signal sound source (TNS) (14) to generate a predetermined signal sound and transmit it to the transferee (2 ₁ ) for listening, and at the same time, a lamp control section (129) To activate the control unit (CTL) (12) and the transferee (2 ₁ )
And via the network (NW) (11),
The forwarder lamp lighting information generated by the lamp controller (129) transmits the (2 _1), turns on the function lamp phones that use of the forwarder (2 _1), forcing the transfer source (2 ₂₎ Notify that the disconnection is possible [step S94].

On the other hand, the transfer destination (2_Three)
When the response is received, the transfer control unit (124)
(2_Two) And transfer destination (2_Three) And transition to the call state
Both, the transfer service status in the storage unit (MEM) (13)
Transfer source of management table (134) (2_Two) [Subscriber number
State (ST) corresponding to (DN) = (2001)]
(1) _DFrom (2)_DTo [step S95].

The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transferee (2 ₁₎ ) Cannot start talking to the transfer destination (2 ₃ ) at any time.

In such a case, the transferee (2 ₁ ) receiving the notice of forced disconnection can perform a predetermined transfer source forced disconnection operation (for example, after hooking, a special number defined for the transfer source forced disconnection is used). Dialing or operating the function button for forcibly disconnecting the transfer source provided in the telephone of the transferee (2 ₁ )] [step S96], the control unit (CTL) in the exchange (1) (12) activates the transfer source disconnection notice control unit (126).

The transfer-source disconnection advance notice control unit (12
6) refers to the transfer source forced disconnection notice table (136) in the storage unit (MEM) (13), and issues the notice permission flag (f
_If it is determined that ₆ ) is already set to logic "0" [step S97], it is determined that the forced disconnection notice is to be executed, and then the notice target table (137) is referred to [step S98], and the notice target is issued. When it is identified that the flag (f ₇ ) is already set to (1) _D , it is determined that both the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are notified of the forced disconnection, and the sound source connection control unit (122) is started, the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are connected to the signal sound source (TNS) (14) via the network (NW) (11), and the signal sound source (TNS) ( 14) to generate a predetermined signal tone for forcing a notice of transfer source forcible disconnection, send the signal tone to the transfer source (2 ₂ ) and the transfer destination (2 ₃ ), let the listener listen, and activate the lamp control unit (129). Control unit (CTL) (12), transfer source (2 ₂ ) and transfer unit. The destination (2 ₃ ) is connected via the network (NW) (11), and the lamp control unit (1
The lamp lighting information generated by 29) is transmitted to the transfer source (2 ₂₎ and the destination _(23), turns on the function lamp phones that use a transfer source (2 ₂₎ and the destination (2 _3),
It is foretold that the transfer source (2 ₂ ) will be forcibly disconnected by the transferee (2 ₁ ) [step S99].

Subsequently, the transfer source disconnection notice control unit (126)
It may identify that the storage unit (MEM) (13) with reference to the notice after the source disconnection method table (139) in the [step S9C], cutting method flag (f ₉₎ is already set to a logic "0" Then, it is determined that the transfer source (2 ₂ ) is forcibly disconnected after a certain time, the time management control unit (127) is activated, and the measurement of the time (t) set for executing the forced disconnection is started [ Step S9D], time management control unit (12
When 7) detects the elapse of the time defined for the forced disconnection execution [step S9F], the transfer source disconnection control unit (12)
8) Start up.

Transfer source disconnection control unit (128) started
Refers to the transfer service status management table (134) and refers to the transfer source (2 ₂ ) [subscriber number (DN) = (200
If it is identified that the state (ST) corresponding to 1) _D ] has already been set to (2) _D [that is, during a call] [step S9
H], after forcibly disconnecting the call between the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) [step S9K], the transferee (2 ₁ )
And the transfer destination (2 ₃ ) are set to the call state [step S9L], and the transfer service state management table (13
Subscriber number (DN) of transfer source (2 ₂ ) [4) in (4) = (2
The state (ST) corresponding to 001) _D ] is updated to (3) _D [other than during transfer call and talking].

From the above, the transfer source (2 ₂ ) becomes the transfer destination (2
₃ ) Even if the transfer to the on-hook state fails after the call with the transferee, the transferee (2 ₁ ) promptly transfers to the transferee (2 ₁ ) by executing the transfer source forced disconnection operation. It becomes possible to start a call with the destination (2 ₃ ).

In the above process, it is desirable that the transfer source (2 ₂ ) or the transfer destination (2 ₃ ) that has heard the notice of the forced disconnection of the transfer source has not yet finished the call and is immediately disconnected. In this case, for example, the transfer source (2 ₂ ) performs an operation specified for releasing the forced disconnection mode [for example, after hooking,
Dial a special number defined for releasing the forced disconnection mode, or operate the function button for releasing the forced disconnection mode provided on the transfer source (2 ₂ ) telephone], the exchange (1 ), The control unit (CT
L) (12) activates the transfer control unit (124).

The activated transfer control unit (124) refers to the forced disconnection mode release table (138) in the storage unit (MEM) (13), and sets the release enable / disable flag (f ₈ ) to logic "0". If the transferee (2
Cancel the forced disconnection mode of the transfer source (2 ₂ ) by ₁ ),
Return to the state before step S96 [step S9
E].

When the state before step S96 is restored, the transferee (2 ₁ ) is instructed to the sound source connection control unit (1
22) is started, the transferee (2 ₁ ) is connected to the signal sound source (TNS) (14) via the network (NW) (11), and the signal sound source (TNS) (14) is controlled to perform a predetermined operation. Is generated and transmitted to the transferee (2 ₁ ), and the lamp control unit (129) is activated to connect the control unit (CTL) (12) and the transferee (2 ₁ ). and connected via a network (NW) (11), lamp controller lamp lighting information generated by (129) transmitted to the forwarder (2 _1), phones that use of the forwarder (2 ₁₎ The function lamp is turned on to notify that the forced disconnection mode of the transfer source (2 ₂ ) has been released.

The transfer executability notification table (135)
If the notification permission flag (f ₅ ) in the above has already been set to the logical “1”, the forced disconnection notification of the transfer source (2 ₂ ) to the transferee (2 ₁ ) is not executed.

If the advance notice flag (f ₇ ) of the advance notice table (137) is already set to (2) _D or (3) _D , the transfer source (2 ₂ ) by the transferee (2 ₁ ). Of the forced disconnection is executed only to the transfer source (2 ₂ ) or only the transfer destination (2 ₃ ) [Step S9A or S9].
B].

Further, the transfer source forced disconnection notice table (13
If the advance notice flag (f ₆ ) in ₆ ) has already been set to logic “1” [step S97], the transferee (2 ₁ ) forcibly disconnects the transfer source (2 ₂ ) is notified. The forced disconnection is executed without being performed.

After the advance notice, the transfer source disconnection method table (13
If the disconnection method flag (f ₉ ) in ₉ ) has already been set to logic “1” [step S9C], the time management control unit (12)
Instead of being forcibly disconnected after a certain period of time under the control of 7), the transferee (2 ₁ ) again executes the operation for forced disconnection executed in step S96 [step S96].
9G], the transfer source is forcibly disconnected.

[0097] Further, when the transfer destination in the call state (2 ₃₎ before responding to the transfer source (2 _2), forced disconnection of the transfer source (2 ₂₎ is executed, transfer service status management table The state (S) corresponding to the transfer source (2 ₂ ) of (134)
Transferee (2 ₁ ) because T) is set to (1) _D
There a state of calling a destination (2 _3), the transfer destination (2 ₃₎ responds, the transferor (2 ₁₎ and destination ₍₂₃₎ and is set in the call state immediately.

Note that the notification enable / disable flag (f ₅ ) to the disconnection method flag (f ₉ ) are uniformly determined for each exchange (1), so that the transfer executability notification table (135) to the post-notification transfer source disconnection method table ( It is also possible to omit 139).

Next, an embodiment of the present invention (claim 3) will be described.
This will be described with reference to FIGS. 8, 10 and 11. FIG. 10 shows the exchange (1) as the exchange (100) in FIG.
It is shown.

The exchange (1) shown in FIG. 10 also has a network (NW) like the exchange (1) shown in FIG.
(11), control unit (CTL) (12), storage unit (ME
M) (13) and a signal source (TNS) (14).

The subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 10 are also provided with subscriber numbers (DN) (2000) _{D to} (2002) _D.
In the control unit (CTL) (12), the transfer control unit (12)
4), sound source connection control unit (122), transfer executability notification control unit (125), transfer source hold notice control unit (12A), time management control unit (127), transfer source hold control unit (12B)
And the lamp control unit (129), and the storage unit (ME
M) (13) includes a transfer service state management table (134), a transfer executability notification table (135), a transfer source hold notice table (13A), a notice target table (137), and a hold mode release table (13B). The post-notification transfer source holding method table (13C) and the transfer source holding person table (13D) are provided to serve as the transferee transfer source holding means (103) in FIG.

In FIG. 10, while the subscribers (2 ₁ ) and (2 ₂ ) accommodated in the exchange (1) are in a call, the subscriber (2 ₂ ) switches the subscriber (2 ₁ ) of the other party to the other party. Subscribers (2
₃ ) Hoping to make a call to [Subscriber number (DN) = (2002)], and the own subscriber (2 ₂ ) becomes the transfer source (2 _TS ), and the callee subscriber (2 ₁ ) is transferred. Person (2 _TP ) and another subscriber (2 ₃ ) as a transfer destination (2 _TD ) in the process of executing a predetermined transfer operation, the transferee (2 ₁ ) performs a predetermined transfer source hold operation [eg, After hooking, dial the special number defined for holding the transfer source, or
Or, operate the function button provided for holding the transfer source on the telephone, etc.] to put the transfer source (2 ₂ ) on hold, and the transferee (2 ₁ ) and transfer destination (2 ₃ )
It is possible to talk to and.

Transfer service status management table (13
4), the transfer executability notification table (135) and the notice target table (137) are the same as those in the present invention (claim 2), and therefore the description thereof will be omitted.

Further, the transfer source suspension notice table (13A)
, Prior to hold the transfer source (2 _TS), possess the transfer source (2 _TS) or destination notice availability flag that specifies whether to notice that it is retained in (2 _TD) (f _A) The notice permission flag (f _A ) is set to logic “0” when the notice is executed, and the notice permission flag (f _A ) is set to logic “1” when the notice is not executed. .

The hold mode release table (13B)
Is the forwarded source (2 _TS ) or destination (2 _TD )
Holds a release possibility flag (f _B ) that specifies whether or not the operation to release the hold mode set by the transferee (2 _TP ) can be executed, and the hold mode can be released. If the release is not possible, the release possibility flag (f _B ) is set to logic “0”, and if the release is not possible, the release possibility flag (f _B ) is set to logic “1”.

Also, after the advance notice, the transfer source holding method table (13
C) is actually the transfer source (2 _TS) How to hold
Hold method flag (f_C)
In case of automatically holding after a predetermined time has passed
Hold flag (f_C) = Set to logic "0",
Also, after the notice, the transferee (2_TP) Can execute the operation again.
When holding with, hold method flag (f_C) = Theory
Set to "1".

Further, the transfer source holding party table (13D) is
A holding operator who holds the transfer source (2 _TS ) [that is, a subscriber who has the right to return to the call with the transfer source (2 _TD ) after the call between the transferee (2 _TP ) and the transfer destination (2 _TD ) ends. ] Holds a hold operator flag (f _D ) indicating whether it is a transferee (2 _TP ) or a transfer destination (2 _TD ), and the transferee (2 _TP ) is a hold operator. If there is a hold operator flag (f _D ) = logical “0”, and if the transfer destination (2 _TD ) is a hold operator, hold operator flag (f _D ) =
Set to logic "1".

The notification permission flag (f_Five), The target
Lag (f₇), Advance notice flag (f _A) Or holding operator
Flag (f_D) Prior to operating the switch (1)
Then, a maintenance person, etc. can make settings from a maintenance console (not shown).
You.

In FIG. 8, FIG. 10 and FIG. 11, while the subscriber (2 ₂ ) which is the transfer source (2 _TS ) is talking to the subscriber (2 ₁ ) which is the transferee (2 _TP ), the transfer destination When the transfer operation for transferring to the subscriber (2 ₃ ) which is (2 _TD ) is executed, in the exchange (1), the control unit (CTL) (12) activates the transfer control unit (124) to transfer the transferred data. Person (2 ₁ ) is on hold, transfer source (2 ₂ ) is on call to transfer destination (2 ₃ ),
The transfer destination (2 ₃ ) is set to the calling state (FIG. 11, step S111), and the transfer source (2 ₂ ) in the transfer service state management table (134) in the storage unit (MEM) (13) is set.
The state (ST) corresponding to [subscriber number (DN) = (2001)] is updated to (1) _D [step S112].

The transfer executability notification control unit (125) in the control unit (CTL) (12) monitors changes in the state (ST) of the transfer service state management table (134),
When it is detected that the status (ST) of the transfer source (2 ₂ ) is updated to (1) _D , the transfer executability notification table (135) in the storage unit (MEM) (13) is referred to, and the notification enable / disable flag is set. When it is identified that (f ₅ ) has been set to logic “0” [step S113], the sound source is notified in order to notify the transferee (2 ₁ ) that the transfer source (2 ₂ ) can be held. The connection control unit (122) is activated, and the network (NW)
The transferee (2 ₁ ) is sent to the signal source (TN) via (11).
S) (14) to control a signal sound source (TNS) (14) to generate a predetermined signal sound and transmit it to the transferee (2 ₁ ) for listening, and at the same time, a lamp control section (129) To activate the control unit (CTL) (12) and the transferee (2 ₁ )
And via the network (NW) (11),
The forwarder lamp lighting information generated by the lamp controller (129) transmits the (2 _1), turns on the function lamp phones that use of the forwarder (2 _1), pending transfer source (2 ₂₎ Notify that it is possible [step S114].

On the other hand, the transfer destination (2 ₃ ) being set to the calling state
Then, the transfer control unit (124) shifts the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) to the call state, and at the same time, transfers the transfer service state management table () in the storage unit (MEM) (13). 134) State (ST) corresponding to transfer source (2 ₂ ) [subscriber number (DN) = (2001) _D ]
Is updated from (1) _D to (2) _D [step S11
5].

The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transferee (2 ₁₎ ) Cannot start talking to the transfer destination (2 ₃ ) at any time.

In such a case, the transferee (2 ₁ ) receiving the hold enable notification performs a predetermined transfer source hold operation (for example, after hooking, dials a special number defined for the transfer source hold, or when you run the forwarder (2 ₁₎ operating a function button for which the source pending provided the phone] [step S116] in the exchange (1), the control unit (CTL) (12) The transfer source hold notice control unit (12A) is activated.

[0114] The activated transfer source holding notice control unit (12
A) refers to the transfer source hold notice table (13A) in the storage unit (MEM) (13) and refers to the notice availability flag (f _A ).
If it is already set to the logic "0" [step S117], it is determined that the reservation notice is executed, and then the notice target table (137) is referred to [step S1].
18], if it is identified that the notice target flag (f ₇ ) is already set to (1) _D , it is determined that both the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are notified of the suspension, Activate the sound source connection control unit (122), and connect to the network (NW)
The transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are connected to the signal sound source (TNS) (14) via (11) and the signal sound source (TNS) (14) is controlled to hold a predetermined transfer source. A signal sound for advance notice is generated and transmitted to the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) for listening, and at the same time, the lamp control unit (129) is activated and transferred to the control unit (CTL) (12). The source (2 ₂ ) and the transfer destination (2 ₃ ) are connected to the network (N
W) (11) to connect to the lamp control unit (12
The lamp lighting information generated 9) sends to the transfer source (2 ₂₎ and the destination _(23), turns on the function lamp phones that use a transfer source (2 ₂₎ and the destination (2 _3), It announces that the transfer source (2 ₂ ) will be held by the transferee (2 ₁ ) [step S119].

Subsequently, the transfer source holding notice control unit (12A)
Refers to the post-notification transfer source holding method table (13C) in the storage unit (MEM) (13) [step S11C],
When it is identified that the holding method flag (f _C ) is already set to logical “0”, it is determined that the transfer source (2 ₂ ) is to be held after a certain time, and the time management control unit (127) is activated,
The measurement of the time (t) set for the hold execution is started [step S11D], and when the time management control unit (127) detects the elapse of the time set for the hold execution [step S11F], the transfer is performed. The former holding controller (12B) is activated.

[0116] The activated transfer source hold control unit (12B)
Refer to the transfer service status management table (134)
The transfer source (2_Two) [Subscriber number (DN) = (200
1)_DThe state (ST) corresponding to] is (2)_D[Ie call
If it is identified that it has been set to [medium] [step S11
H], transfer source (2_Two) And transfer destination (2_Three) Call from
Sender (2_Two) Is reserved [Step S11I]
Sender (2₁) And transfer destination (2 _Three) And call
Together with [Step S11J], the transfer service status management
Source (2) in the table (134)_Two) [Subscriber number (D
N) = 2001], the state (ST) corresponding to (3)
_DUpdate to [Not during call forwarding or talking].

Next, the transfer control unit (124) causes the storage unit (M
When the transfer source holding party table (13D) in the EM (13) is referred to and it is identified that the holding operator flag (f _D ) is already set to the logical “0”, the transferee (2 ₁ ) is identified. It is determined that the transfer source (2 ₂ ) is the hold operator [alias hold source], and that effect is set in the storage unit (MEM) (13) [step S
11N].

From the above, the transfer source (2 ₂ ) becomes the transfer destination (2 2
After the call with ₃ ) is ended, even if it fails to move to the on-hook state, the transferee (2 ₁ ) executes the transfer source hold operation to promptly transfer the transferee (2 ₁ ) and the transfer destination. it is possible to start a call with (2 _3).

In the above process, when the transfer source (2 ₂ ) or the transfer destination (2 ₃ ) that has heard the transfer notice of the transfer source has not finished the call yet and does not want to be put on hold immediately. For example, the transfer source (2 ₂ ) has an operation defined for releasing the hold mode (for example, dialing a special number defined for releasing the hold mode after hooking, or the transfer source (2 ₂ ) telephone. Operating the function button for canceling the hold mode provided in the control unit (CTL) (12) of the exchange (1) activates the transfer control unit (124).

The activated transfer control unit (124) stores the hold mode release table (1) in the storage unit (MEM) (13).
3B), the cancelability flag (f _B ) is logical “0”.
If it is identified that the transferee (2 ₁ ) has set the hold mode of the transfer source (2 ₂ ), the step S
The state before 116 is restored [step S11E].

When the state before step S116 is restored, the transferee (2 ₁ ) activates the sound source connection control unit (122), and the transferee (2 ₁ ) is transferred via the network (NW) (11). Person (2 ₁ ) to signal source (TNS) (1
4), controlling the signal source (TNS) (14) to generate a predetermined signal sound and transmitting it to the transferee (2 ₁ ),
While listening, activate the lamp control unit (129),
The control unit (CTL) (12) and the transferee (2 ₁ ) are connected via the network (NW) (11), and the lamp lighting information generated by the lamp control unit (129) is transferred to the transferee (2 ₁ ). ₁ ), and the function lamp of the telephone used by the transferee (2 ₁ ) is turned on to notify that the transfer source (2 ₂ ) is released from the hold mode.

The transfer executability notification table (135)
If the notification permission flag (f ₅ ) in the above has already been set to the logic “1”, the transferable (2 ₂ ) holdability notification to the transferee (2 ₁ ) is not executed.

When the advance notice flag (f ₇ ) of the advance notice table (137) is already set to (2) _D or (3) _D , the transfer source (2 ₂ ) by the transferee (2 ₁ ). Is notified only to the transfer source (2 ₂ ) or to the transfer destination (2 ₃ ) [Step S11A or S
11B].

If the advance notice flag (f _A ) in the transfer source suspension notice table (13A) is already set to logic "1" [step S117], the transfer source (2) by the transferee (2 ₁ ) is set. ₂ ) The notice of holding is not executed at all,
Hold is executed.

After the advance notice, the transfer source holding method table (13
When the holding method flag (f _C ) of _C ) has already been set to the logical “1” [step S11C], the time management control unit (12)
Instead of being forcibly disconnected after a certain period of time under the control of 7), the transferee (2 ₁ ) executes the holding operation executed in step S116 again [step S1
1G], the transfer source (2 ₂ ) is suspended.

Further, if the transfer source (2 ₂ ) is held before the transfer destination (2 ₃ ) in the calling state responds to the transfer source (2 ₂ ), the transfer service state management table ( Since the state (ST) corresponding to the transfer source (2 ₂ ) of 134) is set to (1) _D , the transferee (2 ₁ ) is in the state of calling the transfer destination (2 ₃ ) and the transfer is performed. Immediately after the destination (2 ₃ ) responds, the transferee (2 ₁ ) and the transfer destination (2 ₃ ) are set to the call state.

The notification permission flag (f_Five), The target
Lag (f₇), Advance notice flag (f _A) Or holding operator
Flag (f_D) Can be determined uniformly for each exchange (1).
By the transfer executability notification table (135), advance notice
Target table (137), transfer source pending notice table (1
3A) to transfer source holding party table (13D) are omitted
It is also possible.

Next, an embodiment of the present invention (claim 4) will be described.
This will be described with reference to FIGS. 8, 12 and 13. In FIG. 12, an exchange (1) is shown as the exchange (100) in FIG.
It is shown.

The exchange (1) shown in FIG. 12 is the same as the exchange (1) shown in FIG. 7 in the network (NW).
(11), control unit (CTL) (12), storage unit (ME
M) (13) and a signal source (TNS) (14), as well as an interrupt trunk (OFT) (15).

Further, subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 12 are also provided with subscriber numbers (DN) (2000) _{D to} (2002) _D, respectively.
In the control unit (CTL) (12), the transfer control unit (12)
4), sound source connection control unit (122), transferee interrupt enable notification control unit (12C), transferee interrupt advance notice control unit (12)
D), the transferee interrupt control unit (12E), the time management control unit (127), the lamp control unit (129), and the transferee interrupt completion notification control unit (12F), and the storage unit (MEM).
In (13), the transfer service status management table (13
4), transferee interrupt enable notification table (13E), transferee interrupt notice table (13F), notice target table (137), interrupt notice state cancel table (13G), post-notice interrupt method table ( 13H) and the transferee interrupt completion notification table (13I) are provided to play the role of the transferee interrupt means (104) in FIG.

In FIG. 12, it is housed in the exchange (1).
Subscriber (2₁) And (2)_Two) During a call, the subscriber
(2_Two) Is the subscriber (2)₁) To other subscribers (2
_Three) And call yourself (2_Two) Turns
Sender (2_TS), And the calling party's subscriber (2₁)
Sender (2_TP) And other subscribers (2_Three) Is the destination
(2 _TD), In the process of performing a predetermined transfer operation,
Forwarder (2₁) Is the specified interrupt operation (eg hooking
After going, dial the special number defined for interruption
Or the function button provided on the telephone for interruption.
The transfer source (2
_Two) And transfer destination (2_Three) It is possible to interrupt the call with
is there.

Transfer service status management table (134)
And the notice target table (137) is the present invention (claims).
The description is omitted because it is the same as in 2). Transferred
Person interrupt enable notification table (13E)
(2_TP) Is the transfer source (2 _TS) And transfer destination (2_TD) To call
Notification possible to specify whether to notify that it is possible to interrupt
No flag (f_E) Is owned by the
Notification flag (f_E) Is set to logic "0"
However, when the notification is not executed, the notification permission flag (f_E)
Is set to logic "1".

[0133] Also, the transferee interrupt notice table (13F)
Is subject to prior to the forwarder (2 _TP) is interrupted, to specify whether or not to notice that the transferor (2 _TP) is interrupted in the transfer source (2 _TS) or destination (2 _TD) It holds the availability flag (f _F ), and sets the advance availability flag (f _F ) to logic “0” when the advance notification is executed, and sets the advance availability flag (f _F ) when the advance notification is not executed. Is set to logic "1".

Also, the interrupt notice state cancellation table (13G)
Is the forwarded source (2 _TS ) or destination (2 _TD )
Holds a cancel enable / disable flag (f _G ) that specifies whether or not the operation to cancel the interrupt mode set by the transferee (2 _TP ) can be executed, and cancels the interrupt mode. When it is possible, the release possibility flag (f _G ) is set to logic “0”, and when it is not possible to release, the release possibility flag (f _G ) is set to logic “1”.

Post-notice interrupt method table (13H)
Holds an interrupt method flag (f _H ) that specifies the actual interrupt method after the advance notice. If the automatic interrupt is made after a predetermined time has elapsed after the advance notice, the interrupt method flag (f _H
H ) = set to logical "0", and after advance notice, transferee (2
_{When the TP} ) interrupts by executing the operation again, it sets the cancellation permission flag (f _G ) = logic “1”.

Further, the transferee interrupt completion notification table (13
I) indicates the completion of the interrupt by the transferee (2 _TP ) as the transfer source (2 _TP ).
_TS ) and transfer destination (2 _TD ) have a notification enable / disable flag (f _I ) that specifies whether or not to notify, and when the notification is executed, the notification enable / disable flag (f _I ) is set to logical “0”. ”
When the notification is not executed, the notification enable / disable flag (f _I ) is set to logic “1”.

The notice target flag (f ₇ ) and the notification enable / disable flag (f _E ) to the notification enable / disable flag (f _I ) are set by a maintainer or the like from a maintenance console or the like (not shown) prior to operating the exchange (1). Set.

In FIG. 8, FIG. 12 and FIG. 13, while the subscriber (2 ₂ ) which is the transfer source (2 _TS ) is talking to the subscriber (2 ₁ ) which is the transferee (2 _TP ), the transfer destination When the transfer operation for transferring to the subscriber (2 ₃ ) which is (2 _TD ) is executed, in the exchange (1), the control unit (CTL) (12) activates the transfer control unit (124) to transfer the transferred data. The person (2 ₁ ) is set to the hold state, and the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are set to the call state [FIG. 13, step S131] and the storage unit (ME).
M) Transfer service status management table (13) in (13)
Subscriber number (DN) of transfer source (2 ₂ ) [in 4) =
The state (ST) corresponding to (2001) _D ] is updated to (2) _D [step S132].

The transferee interrupt enable notification control unit (12C) in the control unit (CTL) (12) monitors the change of the state (ST) of the transfer service state management table (134), and the transfer source When (2 ₂₎ state (ST) is (2) detects that it has been updated to _D, refers to the storage unit (MEM) the forwarder interrupt notification table in (13) (13E), notification whether If it is identified that the flag (f _E ) is already set to logic “0” [step S133], the transferee (2 ₁ )
In order to notify the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) that the call can be interrupted, the sound source connection control unit (12
2) is started, the transferee (2 ₁ ) is connected to the signal sound source (TNS) (14) via the network (NW) (11), and the signal sound source (TNS) (14) is controlled to perform a predetermined operation. Is generated and transmitted to the transferee (2 ₁ ), and the lamp control unit (129) is activated to connect the control unit (CTL) (12) and the transferee (2 ₁ ). and connected via a network (NW) (11), lamp controller lamp lighting information generated by (129) transmitted to the forwarder (2 _1), phones that use of the forwarder (2 ₁₎ The function lamp is turned on to notify that the transferee (21) can interrupt (step S134).

The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transferee (2 ₁₎ ) Cannot start talking to the transfer destination (2 ₃ ) at any time.

In such a case, the transferee (2 ₁ ) receiving the interrupt enable notification performs a predetermined interrupt operation (for example, after hooking, dialing a special number defined for interrupt, or When the function button for interruption provided on the telephone of the transferee (2 ₁ ) is operated] [step S135], in the exchange (1), the control unit (CT
L) (12) activates the transferee interrupt advance notice control unit (12D).

The activated transferee interrupt notice control unit (12
D) refers to the transferee interrupt notice table (13F) in the storage unit (MEM) (13) and identifies that the notice availability flag (f _F ) is already set to logic “0” [ Step S136], it is determined that the notice of interruption is to be executed, and then the notice target table (137) is referred to [step S137], and it is confirmed that the notice target flag (f ₇ ) has been set to (1) _D. If it is identified, it is judged that both the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) will be notified of the interruption,
The sound source connection control unit (122) is activated, and the network (N
W) (11), the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are connected to the signal sound source (TNS) (14), and the signal sound source (TNS) (14) is controlled to perform a predetermined allocation. A signal sound for advance notice is generated and transmitted to the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) for listening, and at the same time, the lamp control unit (129) is activated to activate the control unit (CTL) (12). The transfer source (2 ₂ ) and transfer destination (2 ₃ ) are connected to the network (N
W) (11) to connect to the lamp control unit (12
The lamp lighting information generated 9) sends to the transfer source (2 ₂₎ and the destination _(23), turns on the function lamp phones that use a transfer source (2 ₂₎ and the destination (2 _3), An advance notice of an interrupt by the transfer source (2 ₂ ) [step S13
8].

Subsequently, the transferee interrupt notice control unit (12D)
Refers to the post-notice interrupt method table (13H) in the storage unit (MEM) (13) [step S13B] and identifies that the interrupt method flag (f _H ) has been set to logic “0”. Then, it is determined that an interrupt occurs after a certain time, the time management control unit (127) is activated, and the measurement of the time (t) defined for executing the interrupt is started [step S13C],
When the time management control unit (127) detects the elapse of the time defined for execution of the interrupt [step S13E], the transferee interrupt control unit (12E) is activated.

Transferred person interrupt control unit (12E) which is activated
Network (NW) (11) and interrupt trunk
(OFT) (15) is controlled and the transfer source (2_Two) And forwarding destination
(2 _Three) To the callee (2₁) Interrupt trunk
Interrupt via (OFT) (15)
Set [step S13G].

Next, the control unit (CTL) (12) activates the transferee interrupt completion notification control unit (12F). The activated transferee interrupt completion notification control unit (12F) refers to the transferee interrupt completion notification table (13I) in the storage unit (MEM) (13), and the notification enable / disable flag (f _I ) If the transferee (2
It is judged that the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are notified that the interrupt call state by ₁ ) is completed, the sound source connection control unit (122) is activated, and the network (NW) (11) ), The transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are connected to the signal sound source (TNS) (14), and the signal sound source (TNS) (14) is controlled to generate a predetermined signal sound. To the transfer source (2 ₂ ) and transfer destination (2 ₃ ) for listening, and at the same time activates the lamp control unit (129) to control the control unit (CTL) (12) and transfer source (2 ₂ ) and transfer destination. (2 ₃ ) is connected via the network (NW) (11), and the lamp lighting information generated by the lamp control unit (129) is transmitted to the transfer source (2 ₂ ) and the transfer destination (2 ₃ ), transfer source (2 ₂₎ and the destination ₍₂₃₎ lighting of the function lamp phones that use the To notify that the transferor (2 ₁₎ has completed the call waiting state [Step S13
I].

From the above, the transfer source (2 ₂ ) and the transfer destination (2 2
If _{the 3)} and calls has not been middle people terminated also by the transferor (2 ₁₎ executes an interrupt operation, immediately the forwarder (2 ₁₎ is the transfer source and (2 ₂₎ Transfer it is possible to interrupt the call with the first (2 _3).

In the above process, the transfer source (2 ₂ ) or the transfer destination (2 ₃ ) who has received the interrupt notice of the transferee is
When it is not desired to be interrupted immediately, for example, the transfer source (2 ₂ ) performs an operation defined for canceling the interrupt mode (for example, after hooking, dialing a special number defined for canceling the interrupt mode. Or the function button for canceling the interrupt mode provided on the transfer source (2 ₂ ) telephone is executed], the control unit (CTL) (12) transfers the data in the exchange (1). The control unit (124) is activated.

The activated transfer control unit (124) refers to the interrupt advance notice state cancellation table (13G) in the storage unit (MEM) (13) and sets the cancellation permission flag (f _G ) to logical "0". If it is confirmed that it has been set, the transferee (2
_The interrupt mode according to ₁ ) is released, and the state before step S135 is restored [step S13D].

When the state before step S135 is restored, the transferee (2 ₁ ) activates the sound source connection control unit (122) and transfers the transferee via the network (NW) (11). Person (2 ₁ ) to signal source (TNS) (1
4), controlling the signal source (TNS) (14) to generate a predetermined signal sound and transmitting it to the transferee (2 ₁ ),
While listening, activate the lamp control unit (129),
The control unit (CTL) (12) and the transferee (2 ₁ ) are connected via the network (NW) (11), and the lamp lighting information generated by the lamp control unit (129) is transferred to the transferee (2 ₁ ). ₁ ), and the function lamp of the telephone used by the transferee (2 ₁ ) is turned on to notify that the transferee (2 ₁ ) has canceled the interrupt mode.

The transferee interrupt enable notification table (13
If the notification enable / disable flag (f _E ) in _E ) is already set to logic “1”, the interrupt enable notification to the transferee (2 ₁ ) is not executed.

When the advance notice flag (f ₇ ) in the advance notice table (137) is already set to (2) _D or (3) _D , the transfer source (2 ₂ ) by the transferee (2 ₁ ). The notice of the reservation of is executed only to the transfer source (2 ₂ ) or the transfer destination (2 ₃ ) [Step S139 or S
13A].

Transferee interrupt notice table (13F)
If the advance notice flag (f _F ) in the above is already set to logic “1” [step S136], the advance notice of transferee (2 ₁ ) does not give any notice of interruption, and the interruption is executed. To be done.

If the interrupt method flag (f _H ) of the after-interruption interrupt method table (13H) has already been set to logic "1" [step S13B], the time management controller (127) controls the value to be constant. Instead of being forcibly disconnected after a lapse of time, the transferee (2 ₁ ) executes the holding operation executed in step S135 again [step S13F],
An interrupt is executed by the transferee (2 ₁ ).

Further, the transferee interrupt completion notification table (1
If the notification enable / disable flag (f _I ) of 3I) is already set to logic “1” [step S13H], the transferee interrupt completion notification control unit (12F) is not activated and the transferee (2 ₁₎ ) Does not notify the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) that the interrupt call state has been completed.

It should be noted that the notice target table (137) and the transfer destination are transferred by uniformly determining the notice target flag (f ₇ ), the notification permission flag (f _E ) to the notification permission flag (f _I ) for each exchange (1). Person interrupt enable notification table (13
It is also possible to omit E) to the transferee interrupt completion notification table (13I).

Next, an embodiment of the present invention (claim 5) will be described.
This will be described with reference to FIGS. FIG. 14 shows the exchange (1) as the exchange (100) in FIG.

The exchange (1) shown in FIG. 14 is also a network (NW) like the exchange (1) shown in FIG.
(11), control unit (CTL) (12), storage unit (ME
M) (13) and a signal source (TNS) (14).

Further, subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 14 are also provided with subscriber numbers (DN) (2000) _{D to} (2002) _D, respectively.
In the control unit (CTL) (12), the transfer control unit (12)
4), the sound source connection control unit (122), the transfer source disconnection notice control unit (126), the time management control unit (127), the transfer source disconnection control unit (128), and the lamp control unit (129), and the storage unit ( In the MEM (13), a transfer source forced disconnection notice table (136), a transfer destination operation notice target table (13J), a forced disconnection mode release table (138), and a post-notice transfer source disconnection method table (139), Figure 1
It is provided to play a role of a transfer destination transfer source forced disconnection means (105).

In FIG. 14, the switch is housed in the exchange (1).
Subscriber (2₁) And (2)_Two) During a call, the subscriber
(2_Two) Is the subscriber (2)₁) To other subscribers (2
_Three) And call yourself (2_Two) Turns
Sender (2_TS), And the calling party's subscriber (2₁)
Sender (2_TP) And other subscribers (2_Three) Is the destination
(2 _TD), In the process of performing a predetermined transfer operation,
Sender (2_Two) And the transfer destination (2_Three) Is the specified transfer source
Forced disconnection operation (for example, after hooking,
Dial a special number defined for controlled disconnection, or
Or the function provided for the telephone to forcibly disconnect the transfer source
Button operation, etc.]
(2_Two) Is forcibly disconnected and the transferee (2₁) And transfer destination (2
_Three) Is to be able to talk to.

Forwarding source forced disconnection notice table (136),
Since the forced disconnection mode release table (138) and the post-advance notice transfer source disconnection method table (139) are the same as those of the present invention (claim 2), description thereof will be omitted.

Further, the transfer destination operation notice target table (13
J) has a notice target flag (f _J ) for deciding whether to give a notice to the transfer source (2 _TS ) or the transferee (2 _TP ) when giving notice of forced disconnection. When notifying both the transfer source (2 _TS ) and the transferee (2 _TP ), set the notification target flag (f _J ) = (1) _D , and notifying only the transfer source (2 _TS ) In advance, flag (f _J ) = (2) _D is set in _{advance, and} when only the transferee (2 _TP ) is notified in advance, flag (f _J ) in advance is (3)
Set to _D.

The notice availability flag (f₆), Release permission
Lag (f₈), Cutting method flag (f ₉) And subject to notice
Flag (f_J) Prior to operating the switch (1)
Then, a maintenance person, etc. can make settings from a maintenance console (not shown).
You.

In FIGS. 14 and 15, the transfer source (2
_TS) Is a subscriber (2_Two) Is the transferee (2_TP) Is
Entrant (2₁) To the transfer destination (2_TD) Is a subscriber
(2 _Three) To the switch
In (1), the control unit (CTL) (12) transfers
The control unit (124) is activated, and the transferee (2₁) On hold
State, transfer source (2_Two) And transfer destination (2_Three) And call
(FIG. 15, step S151).

The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transfer destination (2 ₃ ) Will not be able to start talking to the transferee (2 ₁ ) at any time.

In such a case, the transfer destination (2 ₃ ) performs a predetermined transfer source forced disconnection operation (for example, after hooking, dials a special number defined for the transfer source forced disconnection, or the transfer destination (2 _3). Operation of the function button for forcibly disconnecting the transfer source provided in the telephone set)) [step S152], the control unit (C
The TL (12) activates the transfer source disconnection notice control unit (126).

[0166] The transfer source disconnection advance notice control unit (12
6) refers to the transfer source forced disconnection notice table (136) in the storage unit (MEM) (13), and issues the notice permission flag (f
_If it is determined that ₆ ) is already set to logic "0" [step S153], it is determined that the forced disconnection notice is to be executed, and then the transfer destination operation notice object table (13J) is referred to [step S154]. , If the notice target flag (f _J ) is set to (1) _D , the transfer source (2
₂ ) and the transferee (2 ₁ ) are judged to notify the forced disconnection, and the sound source connection control unit (122) is activated,
A signal source (TNS) for the transfer source (2 ₂ ) and the transferee (2 ₁ ) via the network (NW) (11)
Connect to (14), control signal sound source (TNS) (14) to generate a signal tone for a predetermined transfer source forced disconnection notice, and send it to the transfer source (2 ₂ ) and the transferee (2 ₁ ). Then, while listening, the lamp control unit (129) is activated, and the control unit (CTL) (12), the transfer source (2 ₂ ) and the transferee (2 ₁ ) are passed through the network (NW) (11). Then, the lamp control unit (129) transmits the lamp lighting information generated by the lamp control unit (129) to the transfer source (2 ₂ ) and the transferee (2 ₁ ) via the communication path (p _C ), and the transfer source (2 The function lamps of the telephones used by 2 ₂ ) and the transferee (2 ₁ ) are turned on to notify that the transfer source (2 ₂ ) will be forcibly disconnected by the transfer destination (2 ₃ ) [step S155].

Subsequently, the transfer source disconnection notice control unit (126)
Refers to the after-notification transfer source disconnection method table (139) in the storage unit (MEM) (13) [step S157],
When it is identified that the disconnection method flag (f ₉ ) has been set to logic “0”, it is determined that the transfer source (2 ₂ ) will be forcibly disconnected after a certain time, and the time management control unit (127) is activated. , The measurement of the time (t) defined for the forced disconnection execution is started [step S159], and the time management control unit (1
When 27) detects the elapse of the time defined for the forced disconnection execution [step S15B], the transfer source disconnection control unit (128) is activated.

Transfer source disconnection control unit (128) started
After forcibly disconnecting the call between the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) [step S15C], the transferee (2 ₁ )
And the transfer destination (2 ₃ ) are set to the call state [step S
15D].

As described above, the transfer source (2 ₂ ) becomes the transfer destination (2 2
_{Even if} the call to the on-hook state fails after the call with ₃ ), the transfer destination (2 ₃ ) executes the transfer source forced disconnection operation to promptly call the transferee (2 ₁ ). It is possible to start.

In the above process, the transfer source (2 ₂ ) or the transferee (2 ₁ ) who heard the forced disconnection notice of the transfer source
However, if the forced disconnection is not desired immediately, for example, the transfer source (2
₂ ) is an operation specified for releasing the forced disconnection mode (for example, after hooking, a special number defined for releasing the forced disconnection mode is dialed, or provided on the transfer source (2 ₂ ) telephone. Operating the function button for releasing the forced disconnection mode], the control unit (CTL) (12) in the exchange (1) causes the transfer control unit (124).
To start.

The activated transfer control unit (124) refers to the forced disconnection mode release table (138) in the storage unit (MEM) (13), and sets the release enable / disable flag (f ₈ ) to logic "0". If it is determined that the transfer has been completed, the forced disconnection mode of the transfer source (2 ₂ ) by the transfer destination (2 ₃ ) is released, and the state before step S152 is restored [step S15A].

Note that the state before step S152 is restored.
If the destination is (2)_Three), The sound source connection control unit (1
22) is started, and via the network (NW) (11)
And transferee (2₁) To the signal source (TNS) (14)
Connect and control the signal source (TNS) (14)
A signal tone is generated and the transfer destination (2_Three) And let them listen
In addition, the lamp control unit (129) is activated, and the control unit
(CTL) (12) and transfer destination (2_Three) And network
(NW) (11) to connect to the lamp control unit (1
29) the lamp lighting information generated by the transfer destination (2_ThreeSend to
Trust, transfer destination (2 _Three) Use the function lamp of the telephone
Illuminate and transfer source (2_Two) Forced disconnection mode is released
Notify that.

The transfer destination operation notice target table (13
The notice target flag (f _J ) of ( _J ) is (2) _D or (3)
_When set to _D , the notification of forced disconnection of the transfer source (2 ₂ ) by the transfer destination (2 ₃ ) is executed only for the transfer source (2 ₂ ) or for the transferee (2 ₁ ). [Step S1
56 or S157].

The transfer source forced disconnection notice table (13
If the advance notice flag (f ₆ ) in ₆ ) has already been set to logic “1” [step S153], the advance notice of forced disconnection of the transfer source (2 ₂ ) by the transfer destination (2 ₃ ) is executed. Without force, the forced disconnection is executed.

After the notice, the transfer source disconnection method table (13
If the disconnection method flag (f ₉ ) in ₉ ) has already been set to logic “1” [step S157], the time management control unit (12)
Instead of being forcibly disconnected after a certain time by the control of 7), the transfer destination (2 ₃ ) executes the operation for forcible disconnection executed in step S152 again [step S
15B], the transfer source is forcibly disconnected.

Note that the advance notice flag (f₆), Release permission
Lag (f₈), Cutting method flag (f ₉) And subject to notice
Flag (f_J) Can be determined uniformly for each exchange (1).
By the transfer source forced disconnection notice table (136),
Cut-off mode release table (138), transfer source cut off after notice
Disconnection method table (139) and transfer destination operation notice target table
It is also possible to omit the cable (13J).

Next, an embodiment of the present invention (claim 6) will be described.
This will be described with reference to FIGS. 16 and 17. In FIG. 16, the exchange (1) is shown as the exchange (100) in FIG.

The exchange (1) shown in FIG. 16 is also a network (NW) like the exchange (1) shown in FIG.
(11), control unit (CTL) (12), storage unit (ME
M) (13) and a signal source (TNS) (14).

Further, subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 16 are also provided with subscriber numbers (DN) (2000) _{D to} (2002) _D, respectively.
In the control unit (CTL) (12), the transfer control unit (12)
4), the sound source connection control unit (122), the transfer source hold announcement control unit (12A), the time management control unit (127), the transfer source hold control unit (12B), and the lamp control unit (129), and the storage unit ( In the MEM (13), the transfer source pending notice table (13A) and the transfer destination operation notice target table (13
J), the hold mode release table (13B), the post-notice transfer source hold method table (13C), and the transfer destination operation conversion table (13K) play the role of the transfer destination transfer source holding means (106) in FIG. It is provided.

In FIG. 16, it is housed in the exchange (1).
Subscriber (2₁) And (2)_Two) During a call, the subscriber
(2_Two) Is the subscriber (2)₁) To other subscribers (2
_Three) And call yourself (2_Two) Turns
Sender (2_TS), And the calling party's subscriber (2₁)
Sender (2_TP) And other subscribers (2_Three) Is the destination
(2 _TD), In the process of performing a predetermined transfer operation,
Destination (2_Three) Is the specified transfer source hold operation (for example,
The special number that is set for holding the transfer source after performing
Or dial on the phone to place the call on hold
To operate the function buttons that are
From the transfer source (2_Two) And transferee (2 ₁) And transfer
Destination (2_Three) Is to be able to talk to.

The transfer source hold notice table (13A), the hold mode release table (13B) and the post-notice transfer source hold method table (13C) are the same as those in the present invention (claim 3), and the transfer destination operation notice is also given. Target table (1
3J) is the same as in the present invention (claim 5),
Description is omitted.

Transfer destination operation conversion table (13K)
Is a transfer enable / disable flag (f _K) indicating whether the transfer destination (2 _TD ) holding the transfer source (2 _TS ) can transfer the call partner between the transferee (2 _TP ) and the hold operator. ) Is held and the conversion possibility flag (f _K ) = logical “0” is set when the conversion is possible, and the conversion possibility flag (f _K ) = logical “1” when the conversion is impossible. Set to ".

The notice availability flag (f _A ) to the holding method flag (f _C ), the notice object flag (f _J ) and the conversion availability flag (f _K ) are set by the maintenance person or the like before the switchboard (1) is operated. Is set from a maintenance console (not shown).

In FIGS. 16 and 17, the transfer source (2
_TS) Is a subscriber (2_Two) Is the transferee (2_TP) Is
Entrant (2₁) To the transfer destination (2_TD) Is a subscriber
(2 _Three) To the switch
In (1), the control unit (CTL) (12) transfers
The control unit (124) is activated, and the transferee (2₁) On hold
State, transfer source (2_Two) And transfer destination (2_Three) And call
(FIG. 17, step S171).

The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transfer destination (2 ₃ ) Will not be able to start talking to the transferee (2 ₁ ) at any time.

In such a case, the transfer destination (2 ₃ ) has a predetermined transfer source holding operation (for example, after hooking, dials a special number defined for holding the transfer source, or the transfer destination (2 ₃ ) is called). Operate the transfer source hold function button provided on the telephone] [step S17
2], in the exchange (1), the control unit (CTL) (1
2) activates the transfer source hold notice control unit (12A).

[0187] The activated transfer source hold notice control unit (12
A) refers to the transfer source hold notice table (13A) in the storage unit (MEM) (13) and refers to the notice availability flag (f _A ).
When it is determined that is already set to the logic "0" [step S173], it is determined that the hold notice is executed, and then the transfer destination operation notice target table (13J) is referred to [step S174], and the notice target is given. Flag (f _J ) is (1) _D
If it is identified that the transfer source (2 ₂ ) and the transferee (2 ₁ ) are notified of the suspension of the transfer source (2 ₂ ), the sound source connection control unit (122) To start the signal source (TNS) for the transfer source (2 ₂ ) and the transferee (2 ₁ ) via the network (NW) (11).
Connected to (14), the signal source (TNS) (14) is controlled to generate a predetermined transfer source hold notice signal tone, which is transmitted to the transfer source (2 ₂ ) and the transferee (2 ₁ ). , The lamp control unit (129) is activated, and the control unit (CTL) (12), the transfer source (2 ₂ ) and the transferee (2 ₁ ) are transmitted via the network (NW) (11). connect Te, sends lamp controller lamp lighting information generated by (129) in the transfer source (2 ₂₎ and the forwarder (2 _1), the transfer source (2 ₂₎ and the transfer's (2 ₁₎ The function lamp of the telephone to be used is turned on to give a notice that the transfer source (2 ₂ ) is held by the transfer destination (2 ₃ ) [step S175].

Next, the transfer source holding notice control unit (12A)
Refers to the post-notification transfer source holding method table (13C) in the storage unit (MEM) (13) [step S178],
When it is identified that the holding method flag (f _C ) is already set to logical “0”, it is determined that the transfer source (2 ₂ ) is to be held after a certain time, and the time management control unit (127) is activated,
The measurement of the time (t) set for the hold execution is started [step S179], and when the time management control unit (127) detects the lapse of the time set for the hold execution [step S17B], the transfer is performed. The former holding controller (12B) is activated.

Transfer source hold control unit (12B) which is activated
Is the transfer source (2_Two) And transfer destination (2_Three) Call to transfer
Ex (2_Two) Is suspended [step S17D]
Person (2 ₁) And transfer destination (2_Three) And call
[Step S17E].

The transfer control unit (124) uses the transfer destination (2
₃ ) is identified as the holding operator [alias holding source] of the transfer source (2 ₂ ), and that effect is set in the storage unit (MEM) (13). As described above, even if the transfer source (2 ₂ ) ends the call with the transfer destination (2 ₃ ) and fails to move to the on-hook state, the transfer destination (2 ₃ ) executes the transfer source hold operation. Therefore, it becomes possible to promptly start a call with the transferee (2 ₁ ).

In the above process, the transfer source (2 ₂ ) or the transferee (2 ₁ ) who has heard the transfer notice of the transfer source is
When it is not desired to immediately hold the call, for example, the transfer source (2 ₂ ) performs an operation defined for canceling the hold mode (for example, after hooking, dialing a special number defined for canceling the hold mode, Alternatively, by operating the function button for releasing the hold mode provided in the transfer source (2 ₂ ) telephone], in the exchange (1), the control unit (CTL) (12) causes the transfer control unit (CTL) (12) to operate. 124) is started.

The activated transfer control unit (124) stores the hold mode release table (1) in the storage unit (MEM) (13).
3B), the cancelability flag (f _B ) is logical “0”.
If it is determined that the transfer destination (2 ₃ ) is set to the hold mode of the transfer source (2 ₂ ), the step S1 is performed.
It returns to the state before 72 [step S17A].

It should be noted that the operation returns to the state before step S172.
If the destination is (2)_Three), The sound source connection control unit (1
22) is started, and via the network (NW) (11)
And transfer destination (2_Three) To the signal source (TNS) (14)
Then, the signal sound source (TNS) (14) is controlled and a predetermined signal is transmitted.
Generate tone and transfer destination (2_Three) And let them listen
At the same time, the lamp control unit (129) is activated, and the control unit (C
TL (12) and transfer destination (2_Three) And network (N
W) (11) to connect to the lamp control unit (12
The lamp lighting information generated by 9) is transferred to the transfer destination (2_Three) Sent to
Transfer destination (2_Three) Turn on the function lamp of the telephone
Light up and transfer to (2_Three) Source (2 _Two) Hold mode
Notify that the mode has been released.

The transfer destination operation notice target table (13
The notice target flag (f _J ) of ( _J ) is (2) _D or (3)
_{When D} is already set, the transfer destination (2 ₃ ) notifies the transfer source (2 ₂ ) to hold only the transfer source (2 ₂ ) or the transferee (2 ₁ ). Step S176
Or S177].

If the advance notice flag (f _A ) in the transfer source suspension notice table (13A) has already been set to logic "1" [step S173], the transfer source (2 ₂ ) by the transfer destination (2 ₃ ). ) The suspension notice is executed without executing the suspension notice.

After the advance notice, the transfer source holding method table (13
When the holding method flag (f _C ) of _C ) has already been set to the logical “1” [step S178], the time management control unit (12)
Instead of being forcibly disconnected after a certain time under the control of 7), the transfer destination (2 ₃ ) executes the holding operation executed in step S172 again [step S17
C], the transfer source (2 ₂ ) is held.

Further, after the transfer source (2 ₂ ) is put on hold, the transfer destination (2 ₃ ) in communication with the transferee (2 ₁ ) becomes the transfer source (2 ₂ ).
After pending operator [alias held party] for transformation into defined action being [e.g. hooking, dials a special number associated for conversion of pending operator, or telephone destination ₍₂₃₎ Operation of the function button for conversion of the hold operator provided] is executed [step S1
7F], the control unit (CTL) in the exchange (1)
(12) activates the transfer control unit (124).

The activated transfer control unit (124) stores the transfer destination operation conversion table (1) in the storage unit (MEM) (13).
3K), the conversion possibility flag (f _K ) is logical “0”.
If it is determined that the setting has been made to [Step S17
G], it is judged that the holding operator [alias holder] can be converted,
Transfer source (2 ₂ ) already set in the memory unit (MEM) (13)
Transfer operator (alias holder) to the transfer destination (2 ₃ )
Although it converted to the forwarder (2 ₁₎ from [Step S17
H], if it is determined that the conversion permission / inhibition flag (f _K ) is already set to logic “1” [step S17G], it is determined that the holding operator [alias holding person] cannot be converted, and the storage unit ( The transfer of the holding operator [alias holding person] to the transfer source (2 ₂ ) already set in the MEM (13) is not executed [step S17I].

The advance notice flag (f_A), Release permission
Lag (f_B), Holding method flag (f _C), Hula to be announced
Gu (f_J) And convertibility flag (f_K) Switch
(1) Transfer source hold reservation
Notification table (13A), hold mode release table (13
B), transfer source holding method table after advance notice (13C), transfer
Destination operation notice target table (13J) and transfer destination operation transfer
It is also possible to omit the conversion table (13K).

Next, an embodiment of the present invention (claim 7) will be described.
This will be described with reference to FIGS. 18 and 19. FIG. 18 shows the exchange (1) as the exchange (100) in FIG.

The exchange (1) shown in FIG. 18 also has the same network (NW) as the exchange (1) shown in FIG.
(11), control unit (CTL) (12), storage unit (ME
M) (13) and a signal source (TNS) (14).

Further, subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 18 are also provided with subscriber numbers (DN) (2000) _{D to} (2002) _D, respectively.
In the control unit (CTL) (12), the transfer control unit (12)
4), the sound source connection control unit (122), the voice call advance notice control unit (12G), the voice call control unit (12H), the time management control unit (127) and the lamp control unit (129), and the storage unit (MEM). Within (13), a voice call advance notice table (13L), a post-previous notice voice call method table (13M) and a transfer destination operation notice target table (13J) serve as the transfer destination voice call means (107) in FIG. It is provided to fulfill.

In FIG. 18, it is housed in the exchange (1).
Subscriber (2₁) And (2)_Two) During a call, the subscriber
(2_Two) Is the subscriber (2)₁) To other subscribers (2
_Three) And call yourself (2_Two) Turns
Sender (2_TS), And the calling party's subscriber (2₁)
Sender (2_TP) And other subscribers (2_Three) Is the destination
(2 _TD), In the process of performing a predetermined transfer operation,
Sender (2_Two) And the transfer destination (2_Three) Is the prescribed voice call
Outgoing operation (for example, after hooking, set for voice call
Dial a special number or telephone
Operate the function button provided for voice call
Etc.], the transfer source (2_Two) Used by
Switch from the handset on the phone to the speaker,
Transfer destination (2_Three) From the voice.

Transfer destination operation notice target table (13J)
Is the same as the present invention (Claim 5), the description thereof is omitted. The voice call notice table (13L) is the transfer source of (2 _TS) Prior to the voice call, the transfer source (2 _TS) or the forwarder (2 _TP), the voice call to the transfer source (2 _TS) that is intended to hold announcement possibility flag (f _L) that specifies whether to notice to do so, set announcement propriety flag when running notice (f _L) to a logic "0", notice If the above is not executed, the advance notice flag (f _L ) is set to logic “1”.

[0205] In addition, the after-advance voice call method table (13
M) has a calling method flag (f _M ) that specifies the method of actually making a voice call to the transfer source (2 _TS ) after the advance notice, and automatically after a predetermined time has elapsed after the advance notice. When making a voice call, the call method flag (f _M ) is set to logic “0”, and when the transfer destination (2 _TD ) performs the operation again after the advance notice, the call method flag (f _M ) is set. _M ) = set to logic "1".

The notice availability flag (f _L ), the calling method flag (f _M ) and the notice target flag (f _J ) are set by a maintenance person or the like from a maintenance console or the like (not shown) before the switchboard (1) is operated. Set.

In FIGS. 18 and 19, the transfer source (2
_TS) Is a subscriber (2_Two) Is the transferee (2_TP) Is
Entrant (2₁) To the transfer destination (2_TD) Is a subscriber
(2 _Three) To the switch
In (1), the control unit (CTL) (12) transfers
The control unit (124) is activated, and the transferee (2₁) On hold
State, transfer source (2_Two) And transfer destination (2_Three) And call
(FIG. 19, step S191).

[0208] The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transfer destination (2 ₃ ) Will not be able to start talking to the transferee (2 ₁ ) at any time.

In such a case, the transfer destination (2 ₃ ) performs a predetermined transfer source voice call switching operation [for example, after hooking, dialing a special number defined for voice call switching,
Alternatively, the user operates the function button for switching the voice call provided on the telephone of the transfer destination (2 ₃ )] [step S192], and in the exchange (1), the control unit (C
The TL (12) activates the voice call announcement control unit (12G).

[0210] The activated voice call advance notice control unit (12G)
Is a voice call advance notice table in the storage unit (MEM) (13).
(13L), the advance notice flag (f_L) Is logical
If it is identified that it has been set to "0", [Step S1
93], it is determined that the voice call advance notice is to be executed, and then
Refer to the forwarding destination operation notice target table (13J) and select [STEP].
S194], the target flag for advance notice (f_J) Is (1)_DTo
If it is confirmed that it has been set, the transfer source (2_Two)and
Transferee (2₁) To both parties_Two) For voice
The sound source connection control section (12
2) Start up, and via the network (NW) (11)
Transfer source (2_Two) And the transferee (2₁) Signal source
(TNS) (14) to connect to the signal source (TNS) (1
4) to control the sound signal of the predetermined transfer source forced disconnection notice.
Generate and transfer source (2_Two) And the transferee (2₁Send to
Signal, listen, and activate the lamp controller (129).
Control unit (CTL) (12) and transfer source (2)_Two) And
And transferee (2₁) And network (NW) (11)
And the lamp control unit (129) to generate
Transfer the lamp lighting information (2_Two) And the transferee
(2₁) To the transfer source (2 _Two) And the transferee (2
₁) Turn on the function lamp of the telephone you are using
(2_Two) Is the transfer destination (2_Three) Is called by
A notice is given [step S195].

Next, the voice call advance notice control unit (12G)
When the post-notice voice calling method table (13M) in the storage unit (MEM) (13) is referred to [step S198] and it is identified that the calling method flag (f _M ) is already set to logic "0", it is constant. After a lapse of time, it is determined that the transfer source (2 ₂ ) is to be called by voice, the time management control unit (127) is activated, and the measurement of the time (t) set for executing the voice call is started [step S199]. , Time management control unit (127)
Detects the elapse of the time defined for voice call execution [step S19A], the voice call control unit (12H)
To start.

The activated voice call control section (12H)
Switching information between the handset and the speaker provided in the transfer source (2 ₂ ) telephone is generated and the control unit (CT)
L) (12) and transfer source (2 ₂ ) are connected to the network (N
W) (11) connected via a transmit voice call notification control unit switching information generated by the (12G) in the transfer source (2 _2), the handset and speaker phone to use the transfer source (2 ₂₎ And are switched (step S19C).

As a result, the transfer destination (2_Three) Is the transfer source (2
_Two) Is sent to the transfer source (2 _Two) Installed on the phone
Will be output from the installed speaker
(2 _Two) Is the transfer destination (2_Three) On-hook after the call with
Even if you fail to move to the state, the transfer destination (2_Three) Is the phone
Call from the handset of the device to alert the user that transfer has not been completed
To the transfer source (2_Two) Is heard by the speaker
Promptly (2₁) Make a call to
Becomes possible.

In the above process, if the notification target flag (f _J ) of the transfer destination operation notification target table (13J) is set to (2) _D or (3) _D , the transfer destination (2 ₃ ) The advance notice of the voice call of the transfer source (2 ₂ ) is executed only by the transfer source (2 ₂ ) or by the transferee (2 ₁ ) [step S196 or S197].

In the voice call notice table (13L),
Advance notice flag (f_L) Is already set to logic "1"
[Step S193], transfer destination (2_Three) Transfer source
(2 _Two) The voice call announcement is not executed at all,
A voice call is made.

[0216] In addition, the after-advance voice calling method table (13
If the calling method flag (f _M ) of _M ) has already been set to logic “1” [step S198], the time management control unit (12)
Instead of being forcibly disconnected after a certain period of time under the control of 7), the transfer destination (2 ₃ ) performs the voice call switching operation executed in step S192 again [step S19B] to transfer to the transfer destination (2 _3). ), The voice call of the transfer source (2 ₂ ) is executed.

The forwarding destination operation advance notice target table (13J) is determined by uniformly determining the advance notice target flag (f _J ), the advance notice allowance flag (f _L ) and the calling method flag (f _M ) for each exchange (1). , Voice call notice table (1
3L) and the voice call method after notification table (13M) can be omitted.

Next, an embodiment of the present invention (claim 8) will be described.
This will be described with reference to FIGS. 20 to 22. In FIG. 20, FIG.
The exchange (1) is shown as the exchange (100) in.

The exchange (1) shown in FIG. 20 is also a network (NW) like the exchange (1) shown in FIG.
(11), control unit (CTL) (12), storage unit (ME
M) (13) and a signal source (TNS) (14).

Further, subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 20 are also provided with subscriber numbers (DN) (2000) _{D to} (2002) _D, respectively.
In the control unit (CTL) (12), the transfer control unit (12)
4) and the lamp control unit (129), the storage unit (M
In the EM) (13), the special number-lamp control pattern type table (13N) and the transfer destination operation lamp control target table (13P) serve as the transfer destination lamp lighting control means (108) in FIG. It is provided.

In FIG. 20, it is housed in the exchange (1).
Subscriber (2₁) And (2)_Two) During a call, the subscriber
(2_Two) Is the subscriber (2)₁) To other subscribers (2
_Three) And call yourself (2_Two) Turns
Sender (2_TS), And the calling party's subscriber (2₁)
Sender (2_TP) And other subscribers (2_Three) Is the destination
(2 _TD), In the process of performing a predetermined transfer operation,
Sender (2_Two) And the transfer destination (2_Three) Is the designated lamp
Lighting control operation (for example, after hooking, turn on the lamp
Dial a special number defined for light control, etc.)
, The transfer source (2_Two) Or transferee
(2₁) Turn on the lamp on the telephone
It is possible to light.

As shown in FIG. 21, the special number-lamp control pattern type table (13N) shows the transfer source (2 ₂ )
Or when turning on the lamp of the transferee (2 ₁ ),
The type of lighting format to be used indicates the correspondence between the lighting type selection special number (SPN) dialed by the transfer destination (2 ₃ ) and the lighting type (CL ₄ ), and the lighting type selection special number. When (SPN) = [* 1], the lighting type (CL ₄ = 1), that is, the format in which the lamp blinks intermittently every 60 minutes is specified, and the special number (SP) for selecting the lighting type is specified.
When N) = [* 2], the lighting type (CL ₄ = 2),
In other words, it specifies the format in which the lamp blinks at 120 intermittent intervals per minute.

The transfer destination operation lamp control target table (13P) is a control target flag that specifies which telephone of the transfer source and the transferee is controlled when the lamp of the telephone is turned on. (F _P ), the control target flag (f _P ) is set to (0) _D when both the transfer source and the transferee are controlled, and only the transferee is controlled. If the control target flag (f _P ) is set to (1) _D , the control target flag (f _P ) is set to (2) _D when only the transfer source is set as the control target.

The control target flag (f _P ) is set by a maintenance person or the like from a maintenance console or the like (not shown) prior to operating the exchange (1). 20 to 22, a subscriber (2 ₂ ) which is a transfer source (2 _TS ) is in a call with a subscriber (2 ₁ ) who is a transferee (2 _TP ) and a transfer destination (2 2).
When you perform a transfer operation for transferring _TD) is a subscriber to (2 _3), in the exchange (1), the control unit (CTL) (1
2) activates the transfer control unit (124), and the transferee (2)
₁ ) is set to the hold state, and the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are set to the call state [FIG. 22, step S221].

[0225] The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transfer destination (2 ₃ ) Will not be able to start talking to the transferee (2 ₁ ) at any time.

In such a case, the transfer destination (2 ₃ ) executes a predetermined lamp lighting control operation, that is, after hooking,
Special number defined for lamp lighting control (SPN =
For example, if you dial * 1) [step S222],
In the exchange (1), the control unit (CTL) (12) activates the lamp control unit (129).

The activated lamp control unit (129) refers to the special number-lamp control pattern type table (13N) in the storage unit (MEM) (13) [step S22].
3], if it is identified that the lighting type (CL ₄ ) corresponding to the received special number (SPN = * 1) is (1) _D [step S224], the lamp to be controlled is controlled to 60 intermittent minutes per minute. If it is determined that the control target flag (f _P ) is already set to (0) _D , the transfer destination operation lamp control target table (13P) is referred to [step S226], and it is determined that the control target flag (f _P ) has already been set. It is determined that the lamps provided on the telephones of both the transfer source (2 ₂ ) and the transferee (2 ₁ ) are controlled to be turned on.

Subsequently, the lamp control section (129) generates lamp lighting information for blinking the lamps of the transfer source (2 ₂ ) and the transferee (2 ₁ ) at 60 intermittent intervals per minute, and at the same time, the control section (CTL). (12) is connected to the transfer source (2 ₂ ) and the transferee (2 ₁ ) via the network (NW) (11), and the lamp lighting information generated by the lamp control unit (129) is transferred to the transfer source ( 2 ₂ ) and the transferee (2 ₁ ), and the corresponding function lamps of the telephones used by the transfer source (2 ₂ ) and the transferee (2 ₁ ) blink at 60 intermittent intervals per minute [step S227. ].

As a result, the transfer source (2_Two) Is the transfer destination (2
_Three) After the call with), it failed to move to the on-hook state
If the destination (2_Three) Is the transfer source (2_Two) And inversion
Sender (2₁) The function lamp provided on the telephone
By blinking every 60 minutes, the transfer source (2_Two)
To alert the transfer incomplete to the transferee promptly
(2 ₁) It becomes possible to start a call with
Transferee (2₁) Will be able to send some information.

In the above process, the transfer destination (2 ₃ ) dials (* 2) as the lamp control special number (SPN), so that the lamp control unit (129) receives the special number.
It is possible to select the lighting type (CL ₄ ) = (2) _D from the lamp control pattern type table (13N) and generate the lamp lighting information for blinking the controlled lamp 120 intermittently per minute [step S225]. .

When the control target flag (f _P ) of the transfer destination operation lamp control target table (13P) is set to (1) _D or (2) _D , the lamp lighting control is performed by the transferee ( It is executed only for 2 ₁ ) or only the transfer source (2 ₂ ) [step S228 or S229].

It is also possible to omit the transfer destination operation lamp control target table (13P) by uniformly determining the control target flag (f _P ) for each exchange (1). Next, an embodiment of the present invention (claim 9) will be described with reference to FIG.
3 and FIG. 24.

FIG. 23 shows the exchange (10
The exchange (1) is shown as 0). The exchange (1) shown in FIG. 23, like the exchange (1) shown in FIG. 7, has a network (NW) (11) and a control unit (CT).
L) (12), a storage unit (MEM) (13) and a signal sound source (TNS) (14), as well as a three-way call trunk (TWT) (16).

Further, subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 23 are also provided with subscriber numbers (DN) (2000) _{D to} (2002) _D, respectively.
In the control unit (CTL) (12), the transfer control unit (12)
4), sound source connection control unit (122), transfer destination operation three-party call announcement control unit (12I), transfer destination operation three-party call control unit (1)
2J), the time management control unit (127) and the lamp control unit (129), and the storage unit (MEM) (13),
The transfer destination operation three-party call notice table (13Q), the transfer destination operation notice target table (13J), the transfer destination operation three-party call notice release table (13R) and the after-notification three-party call method table (13S) are shown in FIG. It is provided to play the role of the transfer destination three-party call composing means (109).

In FIG. 23, it is housed in the exchange (1).
Subscriber (2₁) And (2)_Two) During a call, the subscriber
(2_Two) Is the subscriber (2)₁) To other subscribers (2
_Three) And call yourself (2_Two) Turns
Sender (2_TS), And the calling party's subscriber (2₁)
Sender (2_TP) And other subscribers (2_Three) Is the destination
(2 _TD), In the process of performing a predetermined transfer operation,
Sender (2_Two) And the transfer destination (2_Three) Is the prescribed tripartite
Talk operation (For example, after hooking,
Dial a special number or telephone
Operate the function buttons provided for three-way calling
Etc.], the transfer source (2_Two) And forwarding destination
(2_Three) To the callee (2₁) Also participated
It enables a call.

Forward destination operation notice target table (13J)
Since it is the same as in the present invention (claim 2), its explanation is omitted. Also, transfer destination operation three-way call notice table (1
3Q) is a notice availability flag (f _Q ) that specifies whether to give notice of the configuration of the three-way call before configuring the three-way call.
If the notice is executed, the notice enable / disable flag (f _Q ) is set to logic “0”, and if the notice is not executed, the notice allowance flag (f _Q ) is set to logic “1”. Set.

The transfer destination operation three-way call announcement cancellation table (13R) shows that the notified transfer source (2 _TS ) or transferee (2 _TP ) is set by the transfer destination (2 _TD ). It is intended to hold the release permission flag (f _R) that specifies whether to enable perform the operation of releasing the mode, in the case to allow releasing the three-way call mode release permission flag (f _R) = set to a logic "0", also in the case of disabled released unset permission flag (f _R) to a logic "1".

[0238] Further, after the notice, the three-way calling method table (13
S) is intended to hold the three-way call process flag that specifies how to configure the actual three-way call after announcement (f _S), after notice, the automatic three-way call after a predetermined time has elapsed configuration If the three-way call method flag (f _S ) = logical “0” is set, the three-way call method flag ( f _S) = is set to logic "1".

Note that the advance notice flag (f_Q), Advance notice availability
Lag (f_F), A flag indicating whether the cancellation is possible (f _R) And three-way calling
Method flag (f_S) Is for operating the exchange (1)
Standing up and setting by a maintenance person from a maintenance console not shown
I do.

23 and 24, the transfer source (2
_TS) Is a subscriber (2_Two) Is the transferee (2_TP) Is
Entrant (2₁) To the transfer destination (2_TD) Is a subscriber
(2 _Three) To the switch
In (1), the control unit (CTL) (12) transfers
The control unit (124) is activated, and the transferee (2₁) On hold
State, transfer source (2_Two) And transfer destination (2_Three) And call
(FIG. 24, step S241).

The transfer source (2 ₂ ) during the call is the transfer destination (2 ₃ )
When you end the call with and go on-hook, the transfer control unit (1
24) sets the transferee (2 ₁ ) and the transfer destination (2 ₃ ) in a call state, but if the transfer source (2 ₂ ) makes an error in the on-hook operation and the off-hook state continues, the transfer destination (2 ₃ ) Will not be able to start talking to the transferee (2 ₁ ) at any time.

In such a case, the transfer destination (2 ₃ ) has a predetermined three-way call operation (for example, after hooking, dialing a special number defined for the three-way call, or the transfer destination (2 ₃ ) is called. Operate the function button for three-way calling provided on the telephone] [step S242],
In the exchange (1), the control unit (CTL) (12) activates the transfer destination operation three-party call announcement control unit (12I).

The activated transfer destination operation three-party call announcement control unit (12I) refers to the transfer destination operation three-party call announcement table (13Q) in the storage unit (MEM) (13), and issues a notice availability flag (f). _If it is determined that _Q ) has already been set to the logical "0" [step S243], it is determined that the interrupt notice is executed, and then the transfer destination operation notice target table (13
J) is referred [step S244], and it is identified that the notice target flag (f _J ) has been set to (1) _D ,
It is judged that both the transfer source (2 ₂ ) and the transferee (2 ₁ ) will be notified of the three-party call, and the sound source connection control unit (122)
Is started, and the transfer source (2 ₂ ) and the transferee (2 ₁ ) are connected to the signal source (TN) via the network (NW) (11).
S) (14), and controls the signal sound source (TNS) (14) to generate a predetermined three-way call announcement signal sound to the transfer source (2 ₂ ) and the transferee (2 ₁ ). At the same time as transmitting and listening, the lamp control unit (129) is activated to connect the control unit (CTL) (12), the transfer source (2 ₂ ) and the transferee (2 ₁ ) to the network (NW) (11). connect through the lamp control section (129) generated lamp lighting information transfer source (2 ₂₎ and transmitted to the forwarder (2 _1), the transfer source (2 ₂₎ and the forwarder (2 ₁ ) The function lamp of the telephone set used in () is turned on to give advance notice of the configuration of the three-way call [step S245].

[0244] Next, the transfer destination operation three-way call announcement control unit (1
2I) refers to the post-notice three-way communication method table (13S) in the storage unit (MEM) (13) [step S24.
8], the three-way call process flag (f _S) to identify that it is already set to a logic "0", it is determined that the three-way call after a certain time is configured, the time management control unit (127) It starts up and starts measuring the time (t) defined for the three-way call execution [step S249], and the time management control unit (127) detects the lapse of the time defined for the three-way call configuration. Then, [Step S24B], the transfer destination operation three-party call control unit (12J) is activated.

Transfer destination operation activated three-way call control unit (1
2J) controls the network (NW) (11) and the three-way call trunk (TWT) (16), and when the call between the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) is performed, the transferee (2 ₁ ) Is connected via a three-way call trunk (TWT) (16) to form a three-way call state [step S24.
D].

From the above, the transfer source (2 ₂ ) and the transfer destination (2 2
_Even when the call with ₃ ) is not completed, the transfer destination (2 ₃ ) promptly transfers the transferee (2 ₁ ) to the transfer source (2 ₂ ) by executing the three-party call configuration operation. Transfer destination (2
₃ ) It becomes possible to participate in the call with.

In addition, in the above process, the three-way call notice is heard.
Transferred source (2_Two) Or transferee (2₁) Is immediate
If you do not want to configure a three-way call to
Ex (2_Two) Is the operation specified for canceling the three-way calling mode
[For example, after hooking, set to cancel the three-way call mode.
Dial the special number given to you, or
(2 _Two) Solution for the three-way calling mode provided on the telephone
Operate the function button for removal]
In (1), the control unit (CTL) (12) controls transfer.
The control section (124) is activated.

The activated transfer control unit (124) refers to the transfer destination operation three-way call announcement cancellation table (13R) in the storage unit (MEM) (13), and determines whether or not the cancellation is possible (f _R ).
When it is determined that the call has been set to the logical "0", the three-way call mode by the transfer destination (2 ₃ ) is released, and step S2
It returns to the state before 42 [step S24A].

If the state before step S242 is restored, the transfer destination (2 ₃ ) is set to the sound source connection control unit (1
22) is started, the transfer destination (2 ₃ ) is connected to the signal sound source (TNS) (14) via the network (NW) (11), and the signal sound source (TNS) (14) is controlled to perform a predetermined operation. A signal sound is generated and transmitted to the transfer destination (2 ₃ ) for listening, and at the same time, the lamp control unit (129) is activated and the control unit (C
The TL (12) and the transfer destination (2 ₃ ) are connected to the network (N
W) (11) to connect to the lamp control unit (12
The lamp lighting information generated 9) is transmitted to the destination _(23), turns on the function lamp phones that use destination (2 _3), the interrupt mode is canceled by the destination ₍₂₃₎ Notify that.

Further, the transfer destination operation notice target table (13
The notice target flag (f _J ) of ( _J ) is (2) _D or (3)
_{If D} has already been set, the notification of the configuration of the three-party call by the transfer destination (2 ₃ ) is executed only to the transfer source (2 ₂ ) or only the transferee (2 ₁ ) [step S246 or S
247].

Further, the transfer destination operation three-way call notice table (1
If 3Q) announcement availability flag in (f _Q) is already set to a logic "1" [step S243], the destination ₍₂₃₎ by the three-way call is not made to be notice all.

After the notice, the three-way calling method table (13
If the three-way call method flag (fs) in _S ) has already been set to logic "1" [step S248], the transfer is performed instead of being forcibly disconnected after a certain time by the control of the time management control unit (127). The destination (2 ₃ ) performs the three-party call configuration operation executed in step S242 again [step S24C], and thereby the three-party call by the transfer destination (2 ₃ ) is configured.

It should be noted that the notice destination flag (f _J ), the notice availability flag (f _Q ), and the three-way calling method flag (f _S ) are uniformly determined for each exchange (1) to determine the transfer destination operation notice target table ( 13J), transfer destination operation three-way call notice table (13Q) to post-notice three-way call method table (1
It is also possible to omit 3S).

Next, an embodiment of the present invention (claim 10) will be described with reference to FIGS. 25 to 32. In FIG. 25,
The exchange (1) is shown as the exchange (100) in FIG.

The exchange (1) shown in FIG. 25 is the same as the exchange (1) shown in FIG. 7 in the network (NW).
(11), control unit (CTL) (12), storage unit (ME
M) (13) and signal sound source (TNS) (14), as well as a ringing signal sending device (RG) (17).

The call signal sending device (RG) (17) is housed in the network (NW) (11) to send a call signal to each subscriber (2). In addition, the subscriber numbers (DN) of the subscribers (2 ₁ ) to (2 ₃ ) shown in FIG. 25 are (2000) _{D to} (2002), respectively.
_D is given.

In the control unit (CTL) (12), a transfer control unit (124), a sound source connection control unit (122), a transfer source operation waiting control unit (12K), a time management control unit (127),
The registrant status monitoring unit (12L) and the registrant status monitoring unit (12M) are also stored in the storage unit (MEM) (13).
Transfer source operation waiting registration table (13T), registrant status management table (13U), transfer source operation waiting allowable time table (13V), transfer source operation recall allowable time table (1
3W), the registered person status management table (13X) and the transfer source operation waiting ringing signal tone type table (13Y) are provided to play the role of the transfer source re-calling means (110) after the transfer call in FIG. There is.

In FIG. 25, it is housed in the exchange (1).
Subscriber (2₁) And (2)_Two) During a call, the subscriber
(2_Two) Is the subscriber (2)₁) To other subscribers (2
_Three) And call yourself (2_Two) Turns
Sender (2_TS), And the calling party's subscriber (2₁)
Sender (2_TP) And other subscribers (2_Three) Is the destination
(2 _TD), In the process of performing a predetermined transfer operation,
Destination (2_Three) To end the call (2)_Two) Is predetermined
After the transfer call of the
Forwarder (2₁) And transfer destination (2_Three) The call with
Then, the transfer source (2_Two) Is the desired transferee (2₁) Or roll
Destination (2_Three) Will be able to call again.

Transfer source operation waiting registration table (13T)
As shown in FIG. 26, is a subscriber number (DN) of a transfer source (2 ₂ ) [hereinafter referred to as a registrant (2 _R )] who performed a re-call registration operation after a transfer call [hereinafter, a registered subscriber number ( DN
_R )], the subscriber number of the transferee (2 ₁ ) or the transfer destination (2 ₃ ) [hereinafter collectively referred to as the registered person (2 _D )] who wishes to make a call after the end of the call (DN) [hereinafter referred to as a registered subscriber number (DN _D )] is registered.

Registered person status management table (13U)
27, the state (ST) of the registrant (2 _R ) already registered in the transfer source operation waiting registration table (13T) as shown in FIG.
If the registrant (2 _R ) maintains the state (off-hook state) in which the re-calling operation is performed after the transfer call, the state (ST) = (1) _D is set, In addition, when the registrant (2 _R ) makes a re-call registration operation after a transfer call and shifts from the off-hook state to the on-hook state, the state (ST) = (2) _D is set, and the on-hook state described above is set. When the [state (ST) = (2) _D ] shifts to the outgoing call in-progress state, the state (ST) = (3) _D is set.

Also, the transfer source operation waiting allowable time table (1
28, the transfer source (2 ₂ ) is the transfer source operation waiting registration table (13) as the registrant (2 _R ).
The maximum time allowed for registration in T) [hereinafter referred to as waiting allowable time (T _W )] is retained.

[0262] The transfer source operation recall allowable time table (13W) is, as shown in Figure 29, if the registrant (2 _D) spoke end, registrant in waiting on-hook state (2 _R) Has a maximum time allowed for the call (hereinafter, referred to as a recall allowable time (T _R )).

Registered person status management table (13X)
Is the transfer source operation waiting registration table as shown in FIG.
Registered person (2_D) State (S
T) and the registered person (2_D) Is after the talk
When you move to the restored state (on-hook state),
State (ST) = (1)_DThe registered person (2
_D) Is not on-hook (that is, off-hook)
In the case, state (ST) = (2)_DIs set to

Further, the transfer source operation waiting ringing signal tone type table (13Y) indicates that the registered person (2 _D ) calls the registered person (2 _R ) while calling for re-calling with the registered person (2 _R ) after the call ends. _R ) is used to specify the type of ringing tone to be heard by the ringing tone type (CL ₂ ). The structure of the transfer source operation waiting ringing signal tone type table (13Y) is the audible display type table shown in FIG. It has the same configuration as (132).

25 to 32, the transfer source
(2_TS) Is a subscriber (2_Two) Is the transferee (2_TP)
Subscriber (2₁) To the transfer destination (2_TD) Is
Entrant (2_Three) To the switch
In (1), the control unit (CTL) (12) transfers
The control unit (124) is activated, and the subscriber (2₁) [Transferee
(2 ₁)] On hold, subscriber (2_Two) (Transfer source
(2_Two)] And subscribers (2_Three) [Forward (2_Three)] And
The talk state is set [FIG. 32, step S321].

The transfer source (2_Two) Is the transfer destination (2_Three)
End the call with the transferee (2₁) And transfer destination (2_Three)
Transfer call ends when you start a transfer call with
After that, the transferee (2₁) And transfer destination (2_Three) Either
[In this case, transfer destination (2_Three)] Rarely to call again
The transfer source (2_Two) Is a call transfer operation after a predetermined transfer call
(For example, after hooking, make a call after transfer call
The special number specified for recording and the call
Destination (2_Three) Subscriber number (DN_Three) = (2002)_D
Dial or transfer to your phone and make a call
Rare calls are made after operating the function buttons provided for recording.
Desired destination (2_Three) Subscriber number (DN _Three) = (20
02)_DDialing, etc.] [Step S
322], in the exchange (1), the control unit (CTL)
(12) activates the transfer source operation waiting control unit (12K)
You.

The transfer source operation waiting control unit (12
K) controls the network (NW) (11) and
Sender (2₁) Hold status and transfer source (2_Two) And transfer
Destination (2 _Three) After releasing the call status with the transferee
(2₁) And transfer destination (2_Three) And the call status [transfer call]
It is set [step S323].

It is assumed that the transfer source (2 ₂ ) is in an off-hook state and is waiting for a call again with the transfer destination (2 ₃ ), and the registrant status management in the storage unit (MEM) (13) is performed. The registration state (ST _R ) = (ST ₂ ) = (1) _D corresponding to the transfer source (2 ₂ ) [registered subscriber number (DN _R ) = (2001) _D ] in the table (13U) is set. It

Next, the transfer source operation waiting control unit (12K)
Is the transfer source operation waiting registration in the storage unit (MEM) (13)
Referring to the table (13T), the registered subscriber number (D
N_R) Area to transfer source (2_Two) Subscriber number (DN_Two) =
(2001)_DThe registered subscriber number (DN_D) Territory
Destination (2_Three) Subscriber number (DN3) = (200
2) _DAre registered in correspondence with each other [Step S3
24].

Next, the transfer source operation waiting control unit (12K)
Extracts the allowable waiting time (T _W ) from the transfer source operation waiting allowable time table (13V) in the storage unit (MEM) (13), activates the time management control unit (127), and waits the allowable waiting time ( T _W ) measurement is started [step S32
5].

Subsequently, the transfer source operation waiting control unit (12K)
Activates the registrant status monitoring unit (12L),
_R ) state (ST _R ), that is, transfer source (2 ₂ ) state (S
T ₂ )] is monitored [step S326].

Subsequently, the transfer source operation waiting control unit (12K)
Activates the registered person status monitoring unit (12M)
(2_D) State (ST_D), That is, the transfer destination (2_Three) Condition
(ST _Three) Is monitored [step S327].

Eventually, the transfer destination (2 ₃ ) and the transferee (2 ₁ )
If the transfer destination (2 ₃ ) is restored to the on-hook state before the transfer call to and from the time management control unit (127) measures the elapsed waiting time (T _W ) [Step S3
28], the registered person status monitoring unit (12M) detects the transition of the transfer destination (2 ₃ ) [= registered person (2 _D )] to the on-hook state, and the registered person status management table (13X) , The registered state (ST _D ), that is, the state (ST ₃ ) of the transfer destination (2 ₃ ) is updated from (2) _D to (1) _D [step S329].

Then, the transfer source operation waiting control unit (12K)
Refers to the transfer source operation waiting registration table (13T),
Registered registrants (2 _R ) [registered subscriber number (DN _R ) corresponding to the registered person (2 _D ) [registered subscriber number (DN _D ) = (2002) _D ] that has transitioned to the on-hook state) = (2
001) _D ] [step S32A].

[0275] Next, the transfer source operation waiting control unit (12K)
Activates the registrant status monitoring unit (12M) to refer to the registrant status management table (13U), and searches for the registrant (2 _R ) [registered subscriber number (DN _R ) = (200
1) Registrant status (ST _R ) [= status (ST ₂ )] of _D ]
Identifies (1) _D , the transfer source (2 ₂ )
Judges that the off-hook state is continuing [step S32
B], the call processing of the registered person (2 _D ), that is, the transfer destination (2 ₃ ) is immediately started.

First, the transfer source operation waiting control unit (12K)
The transfer source operation waiting ringing signal tone type table (13Y) in the storage unit (MEM) (13) is referred to, and the transfer source (2 ₂ )
A group (GR) corresponding to [subscriber number (DN ₂ ) = (2001) _D ] is searched, and group (GR) = (0)
Group number (GRN) = because it is already set to _D
(0) _D , that is, the ring back tone type (CL ₂ ) determined for each exchange (1) is searched, and the ring back tone type (CL ₂ ) = (2)
_{Since D} has already been set, it is determined that a continuous sound of 400 hertz is adopted as a ringing tone for returning the transfer destination (2 ₃ ) to the transfer source (2 ₂ ) during a call [step S32C].
And S32G].

As a result, the transfer source operation waiting control unit (12
K) activates the sound source connection control unit (122), controls the network (NW) (11) to connect the transfer source (2 ₂ ) and the signal sound source (TNS) (14), and connects the signal sound source (TN).
S) (14) generates a continuous sound of 400 hertz and transmits it to the transfer source (2 ₂ ) via the network (NW) (11) [step S32I], transfer destination (2 ₃ ) and call signal. The sending device (RG) (17) is connected, and the calling signal generated by the calling signal sending device (RG) (17) is transmitted to the transfer destination (2 ₃ ) [step S32].
J].

When the transfer destination (2 ₃ ) notices the call signal and responds [step S32K], the transfer source operation waiting control unit (12K) controls the network (NW) (11),
Connection between transfer source (2 ₂ ) and signal sound source (TNS) (14), transfer destination (2 ₃ ) and call signal transmission device (RG)
After releasing the connection with (17), the transfer source (2 ₂ ) and the transfer destination (2 ₃ ) are connected and the re-call state is set [step S32L].

As described above, the transfer source (2 ₂ ) which initiated the transfer call between the transfer destination (2 ₃ ) and the transferee (2 ₁ ) is
After the transfer call ends, it becomes possible to call the transfer destination (2 ₃ ) registered as the registered person (2 _D ) again to configure the re-call state and to listen to the content of the transfer call. .

In the above process, when the transfer originator (2 ₂ ) which has completed the re-call registration operation after the transfer call enters the on-hook state, the transfer originator (2 ₂ ), that is, the registrant (2
Registrant state monitoring unit in monitoring the state of _R) (12L) is,
Transfer source (2 ₂ ) of registrant status management table (13U)
The registrant status (ST _R ) = (ST ₂ ) corresponding to [registered subscriber number (DN _R ) = (2001) _D ] is updated from (1) _D to (2) _D.

In this state, after the transfer call is completed [step S328], the transfer source operation waiting control unit (12K) activates the registrant status monitoring unit (12L) to refer to the registrant status management table (13U), It is identified that the registrant status (ST _R ) [= status (ST ₂ )] of the searched registrant (2 _R ) [registered subscriber number (DN _R ) = (2001) _D ] is (2) _D. Then, it is determined that the transfer source (2 ₂ ) has transitioned to the on-hook state [step S32B], and the registrant (2 2) is started before the call processing of the registered person (2 _D ), that is, the transfer destination (2 ₃ ). _R ), that is, the calling process of the transfer source (2 ₂ ) is executed.

That is, the transfer source operation waiting control unit (12K)
The sound source connection control unit (122) is activated to connect the transfer source (2 ₂ ) and the call signal transmission device (RG) (17), and transfer the call signal generated by the call signal transmission device (RG) (17). It is transmitted to the origin (2 ₂ ) and [Step S32
D], after extracting the recall allowable time (T _R ) from the transfer source operation recall allowable time table (13W) in the storage unit (MEM) (13), the time management control unit (127) is activated and The measurement of the call allowable time (T _R ) is started [step S32E].

When the transfer source (2 ₂ ) that notices the call signal responds before the recall allowable time (T _R ) elapses [step S32F], the transfer source operation waiting control unit (12K) thereafter.
Starts the call processing of the transfer destination (2 ₃ ) in the same process as the above [from step S32C onward].

It should be noted that, since the registered person status monitoring unit (12M) starts monitoring the status of the transfer destination (2 ₃ ), the time management control unit (127) finishes measuring the elapsed waiting time (T _W ). By the time the transfer call has not ended and the transfer destination (2 ₃ ) has not entered the on-hook state, or after the transfer source operation waiting control unit (12K) has started calling the transfer source (2 ₂ ). , The time management control unit (127) allows the recall time (T
_If the transfer source (2 ₂ ) does not respond by the time the measurement of _R ) is completed, the transfer source operation waiting control unit (12K)
Cancels the registration of the re-call after the transfer call by the transfer source (2 ₂ ) and shifts to the normal transfer call state between the transferee (2 ₁ ) and the transfer destination (2 ₃ ) [step S32M].

Further, the transfer source (2 ₂ ) may register the transferee (2 ₁ ) as the registered person (2 _D ) instead of the transfer destination (2 ₃ ) at the time of registration of the re-call after the transfer call. It is possible. 2 to 32 are merely embodiments of the present invention (claims 1 to 10) until now, and for example, the configuration of the exchange (100) which is the subject of the present invention is the same as the illustrated exchange (1).
The present invention is not limited to the above, and many other modifications can be considered, but in any case, the effect of the present invention does not change.

[0286]

As described above, according to the present invention (Claim 1), when the person to be held is waiting to release the call by holding the handset, the hold operator is calling the person to be held by releasing the hold. By audibly or visually displaying the fact, there is no fear that the hold operator mistakes it for another call state, and according to the present invention (Claim 2), the transferee in the hold state during the transfer service is By performing a given operation,
It is possible to prevent the transfer source from being forcibly disconnected and transiting to the state where the transfer destination is ringing or talking to the transfer destination, and it is possible to prevent the transfer source from being left in the hold state for a long time due to the convenience of the transfer source. According to item 3), the transferee in the hold state performs a predetermined operation during the transfer service, so that the transfer source is put in the hold state and the transfer destination is in a calling state or is in a call with the transfer destination. However, it is possible to prevent the transfer source from being left in a holding state for a long time due to the convenience of the transfer source, and the present invention (Claim 4).
According to this, the transferee in the hold state during the transfer service executes a predetermined operation to interrupt the call between the transfer source and the transfer destination, and is left in the hold state for a long time for the convenience of the transfer source. According to the present invention (Claim 5), the transfer source and the transfer destination during a call perform a predetermined operation during the transfer service to forcibly disconnect the transfer source and transferee. It becomes possible to prevent the call from the transferee from being delayed for a long time due to the transfer source, and according to the present invention (Claim 6), the transfer source is transferred during the transfer service. And the transfer destination during a call performs a predetermined operation to put the transfer source in the hold state and transit to a state in which the transfer destination is in a call, and the call with the transfer destination is delayed for a long time due to the transfer source's convenience. Can be prevented, and according to the present invention (Claim 7), transfer can be performed. By performing a predetermined operation between the transfer source and the transfer destination during a call, the transfer source's reception is switched from the handset to the speaker, and a voice call from the transfer destination is heard on the speaker. Therefore, it is possible to prevent a delay in the call with the transferee for a long time, and according to the present invention (Claim 8), the transfer source and the transfer destination during the call perform a predetermined operation during the transfer service. By controlling the lighting of the lamp device provided in the transfer source or the transferee from the transfer destination, it is possible to prevent the call from the transferee from being delayed for a long time due to the convenience of the transfer source. According to (Claim 9), the transfer source and the transfer destination during the call perform a predetermined operation during the transfer service, so that the transferee also participates in the call to enable the three-way call. Long time due to transfer source It is possible to prevent the call to the transferee from being delayed, and according to the present invention (Claim 10), the transfer source which initiates the call between the transferee and the transfer destination during the transfer service performs a predetermined operation. By executing the call, the transferee or the transfer destination can call again after the end of the call to make a call, and it becomes possible to listen to the content of the transfer call, and the convenience of the holding service or transfer service of the exchange. Is greatly improved.

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 shows an exchange according to an embodiment of the present invention (claim 1).

FIG. 3 is a display type table during a call to person to be held in FIG.

FIG. 4 is an audible display type table in FIG.

5 is a visible display type table in FIG.

FIG. 6 is a status display processing of a held person for a holding operator in FIG.

FIG. 7 shows an exchange according to an embodiment of the present invention (claim 2).

FIG. 8 is a transfer service status management table in FIG.

9 is a process for forcibly disconnecting the transfer source by the transferee in FIG.

FIG. 10 is an exchange according to an embodiment of the present invention (claim 3);

11 is a process of holding the transfer source by the transferee in FIG.

FIG. 12 is an exchange according to an embodiment of the present invention (claim 4);

FIG. 13 is an interrupt process by the transferee in FIG.

FIG. 14 is an exchange according to an embodiment of the present invention (claim 5);

15 is a process of forcibly disconnecting the transfer source by the transfer destination in FIG.

FIG. 16 is an exchange according to an embodiment of the present invention (claim 6);

17 is a process of holding the transfer source by the transfer destination in FIG.

FIG. 18 is an exchange according to an embodiment of the present invention (claim 7);

FIG. 19 is a speaker call processing by the transfer destination in FIG. 18 to the transfer source.

20. An exchange according to an embodiment of the present invention (claim 8)

FIG. 21 is a special number-lamp control pattern type table in FIG.

FIG. 22 is a lamp lighting state control process of the transfer source / transferee by the transfer destination in FIG. 20;

FIG. 23 is an exchange according to an embodiment of the present invention (claim 9);

FIG. 24 is a three-way call process by the transfer destination in FIG. 23.

FIG. 25 is an exchange according to an embodiment of the present invention (claim 10);

FIG. 26 is a transfer source operation waiting registration table in FIG. 25.

FIG. 27 is a registrant status management table in FIG. 25.

28 is a transfer source operation waiting time table shown in FIG.

FIG. 29 is a transfer source operation recall allowable time table in FIG. 25.

FIG. 30 is a registered person status management table in FIG. 25.

FIG. 31 is a transfer source operation waiting ringtone type table in FIG. 25.

[FIG. 32] Recall processing after transfer call in FIG. 25

[Explanation of symbols]

 1, 100 exchange 2 subscriber 11 network (NW) 12 control unit (CTL) 13 storage unit (MEM) 14 signal source (TNS) 15 interrupt trunk (OFT) 16 three-way call trunk (TWT) 17 call signal transmission device (RG) 101 Holdee in-call display means 102 Transferee transfer source forced disconnecting means 103 Transferee transfer source suspending means 104 Transferee interrupting means 105 Transferee transfer source forced disconnecting means 106 Transferee transfer source suspending means 107 transfer destination voice call means 108 transfer destination lamp lighting control means 109 transfer destination three-party call configuration means 110 transfer source after transfer call re-calling means 121 held person waiting service control section 122 sound source connection control section 123 display display control section 124 transfer Control unit 125 Transfer executability notification control unit 126 Transfer source disconnection advance notice control unit 127 Management control unit 128 Transfer source disconnection control unit 129 Lamp control unit 12A Transfer source hold notice control unit 12B Transfer source hold control unit 12C Transferee interrupt enable notification control unit 12D Transferee interrupt notice control unit 12E Transferee discount notice Integrated control unit 12F Transferee interrupt completion notification control unit 12G Voice call advance notice control unit 12H Voice call control unit 12I Transfer destination operation three-way call advance notice control unit 12J Transfer destination operation three-way call control unit 12K Transfer source operation waiting control unit 12L Registrant status monitoring section 12M Registered person status monitoring section 131 Retained person calling display type table 132 Audible display type table 133 Visible display type table 134 Transfer service state management table 135 Transfer executable notification table 136 Transfer source forced disconnection notice Table 137 Table subject to advance notice 138 Table for canceling forced disconnection mode 1 39 Post-notice transfer source disconnection method table 13A Transfer source hold notice table 13B Hold mode release table 13C Transfer source hold method after notice table 13D Transfer source holder table 13E Transferee interrupt enable notification table 13F Transferee interrupt notice table 13G Interrupt notice status release table 13H Post notice interrupt method table 13I Transferee interrupt completion notice table 13J Transfer destination operation notice target table 13K Transfer destination operation conversion table 13L Voice call notice table 13M Voice notice after call method table 13N Special number -Ramp control pattern type table 13P Transfer destination operation Lamp control target table 13Q Transfer destination operation Three-way call notice table 13R Transfer destination operation Three-way call notice release table 13S Three-way call method table after notice 13T Transfer source operation Wait registration table 13U registrant status management table 13V diverting operation waiting permissible time table 13W diverting operation recall allowable time table 13X the registrant status management table 13Y diverting operation waiting ringer type table

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication location H04M 3/58 H04M 3/58 A (72) Inventor Toru Yamazaki 4 Kamitadanaka, Nakahara-ku, Kawasaki-shi, Kanagawa 1-chome 1-1 Fujitsu Limited (72) Inventor Takayuki Omori 4-Kamiodachu Nakahara-ku, Kawasaki City, Kanagawa 4-1-1 1-1 Fujitsu Limited (72) Inventor Watanabe Shinagawa 4 Uedota Naka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture Chome 1-1 No. 1 within Fujitsu Limited

Claims (10)

[Claims] 1. When a subscriber who is in a call performs a predetermined hold operation as a hold operator and sets the subscriber of the call partner as a holdee to put on hold, the holdee lowers the handset. In an exchange having a hold function for waiting for hold release, when the hold operator who has performed the hold operation executes a predetermined hold release operation, the called person is called and the hold operator is An audible display for returning a predetermined ringing tone indicating that the held person is calling, and a predetermined indication indicating that the held person is calling when a display is provided to the holding operator. An exchange service control system characterized in that a display means (101) for calling the person to be held is provided for performing at least one of visible display for returning character information. 2. A calling subscriber performs a predetermined transfer operation as a transfer source, temporarily sets a callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In a switch having a transfer function for starting a transfer call between the transfer destination and the transferee after requesting the transfer, the transferee in a hold state is calling the transfer destination,
Alternatively, when a forced disconnection operation is performed for forcibly disconnecting the transfer source during a call with the transfer destination, the transfer source is forcibly disconnected and the transferee is calling the transfer destination, or An exchange service control method comprising means for forcibly disconnecting a transferee transfer source for switching to a state in which a transfer destination is in a call. 3. A subscriber in a call performs a predetermined transfer operation as a transfer source, temporarily sets a callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In a switch having a transfer function for starting a transfer call between the transfer destination and the transferee after requesting the transfer, the transferee in a hold state is calling the transfer destination,
Alternatively, when a holding operation defined for shifting the transfer source in a call with the transfer destination to the hold state is executed, the transfer source is shifted to the hold state and the transferee is calling the transfer destination. Alternatively, the transfer service control system is provided with transferee transfer source holding means for shifting to a state in which the transfer destination is in a call. 4. A subscriber in a call performs a predetermined transfer operation as a transfer source, temporarily sets a callee subscriber as a transferee, and then calls another subscriber as a transfer destination. After the transfer is requested, in the exchange having the transfer function for starting the transfer call between the transfer destination and the transferee, the transferee in the hold state interrupts the transfer source in the call with the transfer destination. A transferee interrupting means for shifting the transferee to an interrupting state of the transferee being in a call with the transfer destination when an interrupt operation determined for that purpose is executed. Switching service control method. 5. The calling subscriber performs a predetermined transfer operation as a transfer source, temporarily sets the callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In a switch having a transfer function for starting a transfer call between the transfer destination and the transferee after requesting the transfer, the transfer destination in a call with the transfer source is a transfer source in a call with the transfer destination. Provided is a transfer destination transfer source forcibly disconnecting means for forcibly disconnecting the transfer source and shifting the transfer destination to a state in which the transfer destination is in a call with the transferee when a forced disconnection operation defined for forced disconnection is executed. A switching service control method characterized by the following. 6. A subscriber in a call performs a predetermined transfer operation as a transfer source, temporarily sets the callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In a switch having a transfer function for starting a transfer call between the transfer destination and the transferee after requesting the transfer, the transfer destination in a call with the transfer source is a transfer source in a call with the transfer destination. A transfer-destination transfer source holding means for transferring the transfer source to a hold state and transferring the transfer destination to a state in which the transfer destination is in a call with the transferee when a hold operation determined to transfer to the hold state is executed. An exchange service control system characterized by providing a. 7. The calling subscriber performs a predetermined transfer operation as a transfer source, temporarily sets the callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In a switch having a transfer function for starting a transfer call between the transfer destination and the transferee after requesting the transfer, the transfer destination in a call with the transfer source causes the transfer source telephone terminal to move by a handset. When performing a voice call switching operation defined to switch from the receiving state to the receiving state by the speaker, the transfer source telephone terminal is switched from the receiving state by the handset to the receiving state by the speaker,
An exchange service control system, further comprising: a transfer destination voice calling means for shifting a transmission from the transfer destination to a state in which the speaker can receive the call. 8. A calling subscriber performs a predetermined transfer operation as a transfer source, temporarily sets the callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In an exchange having a transfer function for starting a transfer call between the transfer destination and the transferee after requesting the transfer, the transfer destination in the call with the transfer source is at least one of the transfer source and the transferee. Lighting of the lamp device of at least one of the transfer source and the transferee when a lamp lighting control operation defined to control the lighting state of the lamp device provided in the other telephone terminal is executed. An exchange service control method comprising: a transfer destination lamp lighting control means for changing a state from the transfer destination to a controllable state. 9. The calling subscriber performs a predetermined transfer operation as a transfer source, temporarily sets the callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In a switch having a transfer function for starting a transfer call between the transfer destination and the transferee after requesting the transfer, the transfer destination in a call with the transfer source is a call between the transfer source and the transfer destination. When performing a three-way call operation defined to join the transferee, the transferee three parties that join the transferee in a call between the transfer source and the transfer destination to form a three-party call A switching service control system characterized in that a call composing means is provided. 10. The calling subscriber performs a predetermined transfer operation as a transfer source, temporarily sets the callee subscriber as a transferee, and then calls another subscriber as a transfer destination. In a switching system having a transfer function for initiating a transfer call between the transfer destination and the transferee after requesting transfer, a transfer source in a call with the transfer destination is a transfer call between the transferee and the transfer destination. In the case of performing the re-call registration operation after the transfer call, which is set to perform the re-call with the transferee or the transfer destination, after the transfer call is terminated,
The transfer destination or the transferee who has designated the transfer source as a registrant and the party to call again is registered as a registered person, and after the registered person completes the transfer call, the called person is called again and the registered person and the called party are called. A switching service control method characterized in that a transfer source re-calling means is provided after a transfer call, which constitutes a state where re-calling is possible with a registrant.