JP2003078934A - Called terminal designation system and transfer destination terminal state display system in caller number notice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a called terminal designation system that can designate a called extension terminal without the need for any special operation or setting from both a caller and a called party and enables other extension terminal to immediately reply an incoming call even when a first selected called party is absence or busy. SOLUTION: When a general phone 1 makes a call to a private branch exchange 1 by a representative number (03-AAAA-XXXX), the private branch exchange 1 references an incoming number table in a memory 16 corresponding to the received representative number and designates a called extension terminal according to priority registered in a caller number notified by the caller number notice.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a called terminal designating method for automatically transferring a caller number notified when a call comes in from a public line to an optimum extension terminal or a transfer destination terminal, and a state of the transfer destination terminal before transfer. The present invention relates to a transfer destination terminal status display method for displaying.

[0002]

2. Description of the Related Art An example of a private branch exchange system to which a conventional called terminal designating system of this type is applied is disclosed in Japanese Patent Laid-Open No. 2000-12.
5017. As shown in FIG. 9, this conventional private branch exchange system includes a modem signal receiving circuit for receiving a caller number notified from a central office line and a transfer destination telephone number grouped by a caller number in a table for each extension. And a central control unit that automatically selects and transfers a transfer destination number corresponding to the received caller number based on the table data in the memory unit. In the case of absence, etc., it is possible to distribute the incoming call to the optimum forwarding destination according to the caller.

[0003]

The above-mentioned conventional called terminal designating method has the following problems. The first problem is that a special operation for automatic transfer processing is required on the called side. The reason is that the table used for automatic transfer must be set in advance on the callee side.

The second problem is that the selection of the destination by the transfer service is unsuitable when a plurality of extension terminals simultaneously receive a call with the representative number. The reason is that, even when the extension terminal set as the transfer destination is absent or busy, another extension terminal must immediately respond.

A third problem is that when the transfer destination is set to a PHS terminal, a mobile phone or the like, when an out-of-range or busy state is encountered, an incoming call from an important party is answered. There is a possibility that you cannot do it. The reason is that there is no process for confirming whether the PHS terminal, the mobile phone, etc. can respond before performing the transfer process.

A fourth problem is that when the transfer destination is set to a PHS terminal, a mobile phone, etc., the caller side waits longer in a ringing state. The reason is that the transfer process is performed automatically, so that the transfer process and the PH
This is because the waiting time for the response is extended depending on the time for processing the incoming call to the S terminal, the mobile phone or the like.

The fifth problem is that the person who answers the incoming call is
When transferring the incoming call to the PHS terminal, mobile phone, etc.,
Whether or not the other party can be reliably connected cannot be judged without actually dialing. The reason is that there is no function to check the state of the transfer destination PHS terminal, mobile phone, etc. in advance.

The sixth problem is that the person who answers the incoming call has P
When transferring to an HS terminal, a mobile phone, or the like, if the transfer destination terminal cannot connect due to being out of service area or busy, the caller may be uselessly waited during that time. The reason is that the state of the transfer destination PHS terminal, mobile phone, etc. cannot be checked in advance.

The seventh problem is that the person who answers the incoming call is P
When transferring to an HS terminal, mobile phone, etc., even if the transfer destination terminal is in the service area and is in an idle state, if the other party cannot respond due to circumstances such as during a meeting, the caller during that time It means to be kept waiting. The reason is that the transfer side cannot know in advance that the transfer destination terminal cannot respond even if it is within the service area.

The present invention has been made in view of the above problems, and the present invention specifies the extension terminal on the receiving side without performing any special operation or setting on either the calling side or the called side. It is possible to provide a called terminal designating method in which other extension terminals can respond immediately even when the called party of the first selection is absent or busy.

Another object of the present invention is to forward the incoming call to a PHS terminal, a mobile phone or the like when a caller who does not want to answer the call responds to the call beforehand. It is to provide a transfer destination terminal status display method capable of confirming the status of a telephone.

Another object of the present invention is to provide a public PHS.
It is to provide a method of designating an incoming terminal capable of setting whether or not transfer is possible from a terminal or a mobile phone.

[0013]

The invention according to claim 1 is
In the called terminal designating method in the caller number notification of the private branch exchange system that can use the representative number service, a plurality of calling number indexes are provided for one called number, and a plurality of extension terminal numbers are given priority for each calling number index. The called party number table registered in order and a called party number expansion unit composed of a plurality of the called party number tables are provided, and the called party number table corresponding to the representative number is retrieved from the called party number expansion unit when an incoming call is made using the representative number, and the caller The destination extension terminal is designated according to the priority order registered in the calling number notified by the number notification.

According to a second aspect of the present invention, the extension terminal designating method according to the first aspect is characterized in that another extension terminal can respond to an incoming call to the destination extension terminal.

The invention according to claim 3 is characterized in that the called extension terminal registered in the called number table is automatically registered from the past record of incoming calls.

The invention according to claim 4 has a storage means for registering a plurality of transfer-destination telephone numbers and the propriety of transfer to the telephone numbers in order of priority, and other means for receiving an incoming call to the called extension terminal. When the extension terminal responds, the transfer destination telephone number registered as the first transfer destination of the destination extension terminal and its transferability are read from the storage means and displayed on the response extension terminal. And

According to a fifth aspect of the present invention, the transfer permission / prohibition registered in the storage means is set from the transfer destination telephone.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. The private branch exchange 1 accommodates the extension terminals 2 to 4 and the PHS portable terminal 7 capable of making a call via the private PHS base stations 5 and 6, and the public network / ISDN network 8
It is connected to the central office exchanges 9 and 10 via.

The private branch exchange 1 also includes a public network connection PKG 11 connected to the public network, an ISDN network connection PKG 12 connected to the ISDN network, and an extension PKG 13 connected to the extension telephones 2 to 4. A PHS PKG 14 connected to the base stations 5 and 6, a call path switch 15 that performs call switching, a memory 16 that stores programs and various data necessary for exchange processing, and a CPU that controls the whole.
17 and 17.

The central office switch 9 includes a general telephone 18 and
A mobile phone 21 capable of making a call via the base stations 19 and 20 is housed. Further, the central office switch 10 includes a general telephone 22
And a mobile phone 2 capable of calling via the base stations 23 and 24.
It houses five.

In the memory 16, as shown in FIG. 2, the destination extension terminal selection memory 26 used when selecting an extension terminal that answers an incoming call, and the call transfer destination for each extension terminal are selected. A terminal state memory 27 used in this case is provided.

FIG. 3 is a block diagram showing the configuration of the destination extension terminal selection memory 26. The called number expansion unit 28 is composed of called number tables 28A to 28X corresponding to each representative number (called number) dialed by the caller. In the called number tables 28A to 28X, the priority destination telephone numbers to be selected are registered in order of priority, using the telephone number (calling number) of the caller as an index.

The information registered in the destination extension terminal selection memory 26 is automatically generated by each operation such as outgoing call, incoming call, and response. For example, the called number table 28
The priority-destination extension telephone number registered in is the extension number of the extension terminal that responded to the incoming call. In particular,
The extension number of the extension terminal that responded when the caller dialed the number (destination number) or the extension number of the extension terminal that responded afterwards was registered in the destination number table .

FIG. 4 is a block diagram showing the configuration of the terminal state memory 27. The confirmation number list 29 is for the private branch exchange 1.
Extension number tables 29A to X in which telephone numbers of a plurality of transfer destination terminals are registered in order of priority for each extension terminal accommodated in
Composed of. In addition, transfer permission / inhibition information indicating whether the transfer to the telephone number is permitted or rejected is added to the telephone number of each transfer destination terminal. It is possible to set.

Next, the operation of this embodiment will be described. FIG. 5 is a flow chart showing an incoming call procedure when an incoming call is received from the public network (including the ISDN network) in the present embodiment. The ordinary telephone 18 (03-BBBB) connected to the central office switch 9 of FIG. -XXXX), an example will be described below in which there is an incoming call from the private branch exchange 1 to the extension terminals 2 to 4 grouped by the representative number 03-AAAAA-XXXX.

First, the private branch exchange 1 accepts an incoming call from the public network (including the ISDN network) to the representative number 03-AAAAA-XXXX (S100). Next, it is confirmed that the caller number is added to the incoming call (S101). Therefore, if the caller number is not set, the existing normal incoming call process is performed (S102). When the caller number is set, a table corresponding to the called number (03-AAAA-XXXX) is created from the called number expansion unit 28 of the destination extension terminal selection memory 26 set in the memory 16 of the private branch exchange 1. It is confirmed whether it is set (S103).

As a result of the confirmation, if it does not exist, normal processing is performed (S104). When the table for the called number (called number table 28A) exists, the set calling number index and calling number (03-BBBB-X).
XXX) is compared, and it is confirmed whether there is matching data (S105). If it does not exist, normal processing is performed (S106). If it exists, the extension number (20000) of the destination terminal having the first priority is read (S10).
7). It is checked whether the read extension number can receive the call (S108). If the call cannot be received due to the busy / absent transfer setting, etc., the second priority extension number (20001) is read. Perform (S107).

If the incoming call is possible, the incoming call process is started (S109). In the incoming call processing, a ringing tone is sent to the designated extension terminal 3 in addition to the incoming call lamp control, and only the incoming call lamp is controlled to the other extension terminals 2 and 4 (S110). After that, the elapse of a certain time is checked (S111), and it is confirmed whether or not there is a response until the elapse of the certain time (S112). If there is no response, a ringing tone is sent to the other extension terminals 2 and 4. Process (S113). If there is a response, connection processing for the incoming call is performed and a call state is set (S11).
4).

Next, the procedure of call transfer in this embodiment will be described. FIG. 6 is a flow chart showing the call transfer procedure in this embodiment shown in FIG. A general telephone 18 (03-BB connected to the central office switch 9
BB-XXXX) to the private branch exchange 1 with a representative number 03-
When the extension terminals 2 to 4 grouped by AAAA-XXXX receive an incoming call, the extension terminal 2 selected first is called by the procedure shown in the flowchart of FIG. When another extension terminal 3 accommodated in the private branch exchange 1 responds to this (S200), at the same time, it refers to the extension number 29A of the confirmation number list 29 of the terminal state memory 27 and is selected first. If the transfer destination telephone number data for the extension telephone number 20000 of the extension terminal 2 is set, the status confirmation processing of the transfer destination telephone is performed (S201).

The extension terminal 3 confirms whether or not the call needs to be transferred (S202), and if it is not necessary, performs a normal process (S203). If the transfer is necessary, the transfer destination extension terminal status confirmation process described later is performed, and the result is displayed on the extension terminal 3 (S204). From the result, it is confirmed whether transfer is possible (S205), if transfer is not possible, normal processing is performed (S206), and if possible, to transfer the incoming call to the displayed transfer destination telephone number. Is performed (S207).

Next, the procedure of the transfer destination extension terminal status confirmation processing will be described in detail with reference to the drawings. FIG. 7 shows FIG.
It is a flowchart figure which shows the procedure of the transfer destination extension terminal state confirmation process shown by. First, the telephone number of the transfer destination is obtained from the confirmation number list 29 by using the extension number "20000" of the first selected extension destination terminal 2 as an index (S300). It is determined whether the transfer destination telephone number is a telephone number in the private branch exchange or a public telephone number (S30).
1). In the case of a public telephone number, the selected telephone number (for example, the mobile telephone 21 in FIG. 1, the first priority 090- in FIG. 4)
For the DDDD-XXXX), the dummy line is used to perform the calling process (S303), and when the connection is established, the voice guidance notifies that the transfer process is to be performed.
The transfer destination telephone is automatically put on hold (S304).

Thereafter, the telephone number of the transfer destination and the terminal status (idle) are displayed on the LED of the extension terminal 3 (S30).
7). Then, it is checked from the extension terminal 3 whether or not the transfer process is necessary (S308), and if the transfer process is not necessary, the dummy line and the transfer destination phone (mobile phone 21) are restored (S).
309). When the transfer process from the extension terminal 3 is required, the transfer is performed from the transfer source extension terminal 3 to the dummy line (S310). After that, the dummy line is automatically restored (S311), and the extension terminal 3 of the transfer source and the mobile phone 21 of the transfer destination are brought into a call state (S312). After that, when the transfer source telephone (extension terminal 3) is restored, the caller and the transfer destination telephone (mobile telephone 21) enter the call state (S31).
3).

On the other hand, as a result of S301, when the transfer destination telephone number is the telephone number of the private branch exchange, the transfer destination telephone (the PHS portable terminal of FIG. 1) is read from the call state management memory (not shown) in the private branch exchange. The state of 7) is obtained (S302).
If the result is that the call cannot be received due to busy, incoming call rejection, out of service area, etc., it is determined from the transfer destination number data whether another transfer destination is registered (S305). If there is another number, S300 is set. Return to. If there is no other transfer destination, the extension terminal 3 displays the transfer destination status "busy / incoming call rejection / out of service area / connection impossible" (S306).

Next, if the result of S302 is idle, the incoming call reservation state is set in the call state management memory of the PHS portable terminal 7 of the transfer destination (S314), and the extension terminal 3 of the transfer source is set.
The telephone number of the PHS portable terminal 7 of the transfer destination and the transfer destination state “idle” are displayed with respect to (S315). It is checked from the extension terminal 3 whether transfer processing is necessary (S316), and if not transferred, the incoming call reservation state of the call state management memory of the PHS portable terminal 7 of the transfer destination is cleared (S317).

When transfer from the extension terminal 3 is necessary, transfer processing is performed from the transfer source extension terminal 3 to the transfer destination PHS portable terminal 7 (S318). At the time of transfer, the incoming call reservation state of the call state management memory of the PHS portable terminal 7 is cleared (S319). After that, by performing the restoration process of the extension terminal 3 of the transfer source, the caller and the PHS portable terminal 7 of the transfer destination are in the call state (S320).

Next, referring to FIG. 1, a public mobile phone 25
A transfer permission / rejection setting procedure from the above will be described with reference to FIG. First, using the public network, dial the dedicated number accommodated in the private branch exchange 1 from the mobile phone 25,
The private branch exchange 1 is called. The private branch exchange 1 confirms the called number (S400). If it does not match the number of this processing, normal processing is performed (401). If they match, the mobile phone 25 waits for the next instruction by the additional dial method. In response to an instruction from the mobile phone 25 (S402), in the case of a transfer refusal setting request, for the database in which the caller number and the transfer destination number of the terminal state memory 27 are the same, the state "transfer disabled" and the reason "transfer "Reject" is set (S40
3). In the case of the result transfer permission in S402, "transfer permission" is set to the database in which the caller number and the transfer destination number in the terminal state memory 27 match (S404).

[0037]

The first effect is that this service can be provided without performing any operation on both the sender and the receiver. The reason is that the setting for call forwarding is not required.

The second effect is that even if the person in charge is absent,
The other terminal can respond immediately. The reason is that the incoming call terminal is selected by the ringing tone, and after a certain period of time, the incoming call is returned in the same manner as an ordinary incoming call.

The third effect is that it is possible to prevent the caller from waiting even if the transfer destination terminal is a PHS, a mobile phone or the like. The reason is that the state of the transfer destination terminal can be confirmed in advance before performing the transfer process.

A fourth effect is that it is possible to prevent the caller from waiting while the call is accidentally transferred when the transfer destination terminal cannot respond. The reason is that the transfer destination terminal side can arbitrarily set transfer permission / rejection for the private branch exchange.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of a memory 16.

FIG. 3 is a block diagram showing an internal configuration of a destination extension terminal selection memory 26.

FIG. 4 is a block diagram showing an internal configuration of a terminal state memory 27.

FIG. 5 is a flowchart showing an incoming operation procedure of the present embodiment.

FIG. 6 is a flowchart showing a procedure of selecting a called terminal according to the present embodiment.

FIG. 7 is a flowchart showing an operation procedure of automatic call forwarding according to the present embodiment.

FIG. 8 is a flowchart showing a procedure for setting call transfer permission / rejection according to the present embodiment.

FIG. 9 is a block diagram showing a configuration of a conventional technique.

[Explanation of symbols]

1 Private branch exchange 2 to 4 extension terminals 5,6 Premises PHS base station 7 PHS mobile terminals 8 Public network / ISDN network Exchange for 9 and 10 stations 11 PKG for public network connection 12 PKG for ISDN connection 13 Extension PKG 14 PKG for PHS 15 Call path switch 16 memory 17 CPU 18 General telephone 19,20 Base station 21 mobile phone 22 General telephone 23, 24 base stations 25 mobile phones 26 Recipient extension terminal selection memory 27 Terminal state memory 28 Called party number expansion section 28A-X called number table 29 List of confirmation numbers 29A-X Extension number table 91 Modem signal receiving circuit 92 Memory section 93 Central control unit

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Claims (5)

[Claims] 1. A method of designating a called terminal in a caller number notification of a private branch exchange system capable of using a representative number service, wherein a plurality of calling number indexes are provided for one called number, and a plurality of calling number indexes are provided for each calling number index. A called number table in which extension terminal numbers are registered in order of priority, and a called number expansion unit composed of a plurality of the called number tables are provided, and a called number table corresponding to the representative number is received from the called number expansion unit when an incoming call is made with a representative number. A called terminal designating method characterized by searching and designating a called extension terminal according to the priority order registered in the calling number notified by the caller number notification. 2. The called terminal designating method according to claim 1, wherein another extension terminal can respond to an incoming call to the called extension terminal. 3. The called terminal designating method according to claim 1, wherein the called extension terminal registered in the called number table is automatically registered based on the past call record. 4. The receiving terminal designating method according to claim 2, further comprising storage means for registering, for each extension terminal, a plurality of transfer destination telephone numbers and transferability to the telephone numbers in order of priority.
When another extension terminal responds to an incoming call to the destination extension terminal, the transfer destination telephone number registered as the first transfer destination of the destination extension terminal and its transfer permission / inhibition are transferred from the storage means. A transfer destination terminal status display method, wherein the extension terminal that has read out and responded is displayed. 5. The transfer destination terminal status display system according to claim 3, wherein transfer permission / prohibition registered in the storage means is set from a transfer destination telephone.