JPH05167680A - Terminal interrupt control system - Google Patents

Abstract

PURPOSE:To notify an arrival of an incoming call to a called subscriber regardless of the attribute of the called subscriber when an emergent call comes to the busy subscriber. CONSTITUTION:Call class information identifying whether or not an incident call is an object of a busy state call reception function 101 is added to the call and the system is provided with a call class identification means 102 identifying the call class information added to a call arrived to a busy subscriber 200. When the call class identification means 102 identifies the call class of an incoming call to be a call class being an object of the busy state call reception function, the busy state call reception function is started for the called subscriber, and when the call class identification means 102 identifies the call class of an incoming call to be not an object of the busy state call reception function, the qualification of the use of the busy state call reception function by the called subscriber is analyzed and the busy state call reception function is started.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal interrupt control system in an exchange having a call waiting function.

As one of the functions of the exchange, when an incoming call arrives at a subscriber, the incoming subscriber superimposes an incoming call display sound on the telephone call and the incoming subscriber performs a predetermined response operation. In this case, a call waiting function that puts a call on hold to respond to an incoming call is being used under the name of a call waiting function or the like.

[0003]

2. Description of the Related Art FIG. 5 is a diagram showing an example of a conventional switching network, and FIG. 6 is a diagram showing an example of a telephone conference connection process in FIG.

In FIG. 5, the local exchange (LS) 2 ₁ accommodating the subscriber 1 ₁ is in the middle of a call for which the subscriber 1 who has a contract for using the incoming call during the call is the target of the incoming call function. A subscriber unit (CWF) 221 is provided in the central control unit (CC) 22, and subscriber data (S) provided in the main storage unit (MM) 23 corresponding to each subscriber 1 accommodated.
D) Incoming call information CWI indicating to 231 whether or not a contract for using the incoming call function is concluded as one of the attributes of subscriber 1 (logical “1” if contracted, if not contracted) Is set to logic "0").

In FIGS. 5 and 6, the local exchange (L
S) subscriber 1 ₁ accommodated in 2 ₁ and local exchange (L
S) During the call COM with the subscriber 1 ₂ accommodated in 2 ₂ ,
Telephone conference equipment (CF) installed in the long-distance exchange (TS) 3.
C) 31 is, when it is detected that became the start time of the conference call that the organizer of the subscriber 1 ₁ has been reserved, telephone number DN of the subscriber's 1 ₁ against the local exchange (LS) 2 _{1 1}
The connection instruction information IAM (DN ₁ ) including the
S) Transfer to 2 ₁ .

[0006] In the local switch (LS) 2 _1, connecting the central controller (CC) 22 receives instruction information IAM
When it is identified that the called subscriber 1 ₁ identified from (DN ₁ ) is in a call, the call waiting section (CWF) 221 is activated.

The activated call waiting section (CWF) 221
Refers to the subscriber data (SD) 231 ₁ corresponding to the called subscriber 1 ₁ in the main memory (MM) 23. Here, when the subscriber 1 ₁ is entered into a use contracts call waiting feature, the subscriber data (S corresponding to the subscriber 1 ₁
D) Call incoming information CWI provided in 231 ₁ is set to logic "1".

In such a case, the call waiting section (CWF) 2
21 identifies that the call waiting information CWI is set to logic "1", determines that the subscriber 1 ₁ can use the call waiting function, captures the call waiting circuit (CWC) 27, It is inserted into the connection between the subscriber 1 ₁ and the subscriber 1 ₂ via the network (NW) 21, and the call receiving circuit (CW)
C) An incoming call indication sound IIT generated by 27 is sent to the subscriber 1 ₁ .
Subscriber 1 ₂ superimposes on the voice and listens.

Subscriber 1 who listened to the incoming call indication sound IIT
_{When 1} executes a predetermined operation for temporarily holding a call with the subscriber 1 ₂ and answering an incoming call, for example, hooking, the subscriber 1 ₁ sends a call to the local exchange (LS) 2 _1. And the hooking signal HKG is returned.

In the local exchange (LS) 2 ₁ , when the central control unit (CC) 22 receives the hooking signal HKG returned from the subscriber 1 ₁ , the long distance exchange (TS) 3
Response information ANS to the conference call device (CFC) 31 via
, The network (NW) 21 is controlled and the connection between the subscriber 1 ₁ and the subscriber 1 ₂ is temporarily released, the subscriber 1 ₂ is connected to the signal tone generation circuit (TNS) 26, and the signal tone is generated. The subscriber 1 ₂ is made to hear the waiting tone HST generated by the generating circuit (TNS) 26, and the subscriber 1 _{1 is connected} to the toll switch (T
S) 3 to connect to the conference call device (CFC) 31
The subscriber 1 _{1 is made} to listen to the conference call guidance GDS generated by the telephone conference device (CFC) 31.

The conference call device (CFC) 31 that has received the response information ANS is the subscriber 1 who is a participant in the conference call.
Connection instruction information IAM (D including the telephone number DN ₃ of ₃
Transfer the N ₃₎ local switch (LS) to 2 _3, off-hook local switch (LS) is transmitted a call signal RG to the subscriber 1 ₃ 2 _3, is returned from the subscriber 1 ₃ in response Upon receiving the signal FHK, the local exchange (LS) 2 ₃ returns the response information ANS to the telephone conference device (CFC) 31, and the long distance exchange (TS) 3 and the local exchange (L).
S) Call convocation guidance GD to subscriber 1 ₃ via 2 ₃
Sends the S, further subscribers 1 ₄ is other participants call in the process similar to that described above, after listening to meeting invitations guidance GDS, subscriber 1 _1, 1 ₃ and 1 ₄ a conference call device It connects through the (CFC) 31 and enables conference call CNF.

If the subscriber 1 ₁ does not have a contract for using the call waiting function, the call waiting information CW in the subscriber data (SD) 231 ₁ corresponding to the subscriber 1 ₁
I is set to logic "0".

In such a case, the activated call waiting section (CWF) 221 refers to the subscriber data (SD) 231 ₁ corresponding to the called subscriber 1 ₁ in the main memory (MM) 23, When call waiting information CWI identifies that it is set to a logic "0", judges that disables call waiting feature subscriber 1 _1, teleconferencing apparatus via a toll switch (TS) 3 ( The busy information BSY is returned to the CFC) 31.

Telephone conferencing device that receives busy information BSY
(CFC) 31 is the organizer (subscriber 1 ₁) Is busy
Therefore, it is determined that the reserved conference call cannot be held. phone
The conference device (CFC) 31 is
Try to hold the meeting again, but call at the specified time when making the reservation.
The meeting cannot be held.

When the subscriber 1 ₃ or 1 ₄ is in a call and has not signed a contract for using the call waiting function, the subscriber 1 ₃ or 1 ₄ is processed as not participating.

The above problem is not limited to the conference call, and when the subscriber 1 ₁ receives an emergency call, the subscriber 1 1
It also occurs when ₁ is in a call and the contract for using the incoming call waiting function has not been concluded.

[0017]

As is apparent from the above description, in the conventional switching network, whether or not the call waiting function is a target is determined by the contract of the call waiting function of the called subscriber 1 _1. Depending on the status, if subscriber 1 ₁ does not have a contract for the incoming call function, there is a problem that an emergency call such as a conference call with a designated time cannot be immediately reported to subscriber 1 ₁ . ..

An object of the present invention is to make it possible to notify an incoming call, regardless of the attributes of the called subscriber, when an emergency call is received by the calling subscriber.

[0019]

FIG. 1 is a diagram showing the principle of the present invention. In FIG. 1, reference numeral 100 is an exchange which is the subject of the present invention, 101 is a call waiting function included in the exchange 100, and 200 is a subscriber accommodated in the exchange 100.

Reference numeral 102 is a call type identification means provided in the exchange 100 according to the present invention.

[0021]

The exchange 100 adds the call type information for identifying whether or not the incoming call function 101 is a target to the generated call.

The call type identification means 102 identifies the call type information added to the call received by the calling subscriber 200. When the call type identification means 102 identifies the incoming call as the call type targeted by the call waiting function 101, the exchange 100 sends the call receiving function 10 to the called subscriber 200.
Start 1.

The exchange 100 has a call classification identifying means 10
When 2 identifies the incoming call as a call type to be excluded from the call waiting function 101, the call receiving function 101 of the called subscriber 200 is analyzed and the call waiting function 101 is analyzed.
It is considered to launch.

Therefore, in the case of an urgent incoming call, the incoming subscriber can notify the incoming subscriber who is in a call of the incoming call regardless of the usage qualification of the in-call incoming call function, and the convenience of the subscriber of the exchange is improved. ..

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 2 is a diagram showing a switching network according to an embodiment of the present invention, FIG. 3 is a diagram showing an example of a conference call connection process in FIG. 2, and FIG. 4 is an example of a general incoming call connection process in FIG. It is a figure. The same reference numerals denote the same objects throughout the drawings.

In FIG. 2, the exchange 10 shown in FIG.
0 as local exchange (LS) 2 ₁ is shown, also the local exchange as call waiting function 101 in FIG. 1 (LS)
In the central control unit (CC) 22 of 2 ₁ , a call waiting section (C
WF) 221 is shown and is also the subscriber 200 in FIG.
The subscriber 1 ₁ is shown as, and a call type identification unit (CLS) 222 is provided as the call type identification means 102 in FIG. 1 in the central control unit (CC) 22 of the local exchange (LS) 2 ₁ . ..

Further, in the switching network shown in FIG. 2, call type identification information CLI (in the case of a call waiting call receiving target) indicating whether or not the call originated in the network is a target of the call waiting call receiving function. Set to logic "1" and exclude it from logic "0"
Setting) is added.

First, an embodiment of the present invention (claim 1) will be described with reference to FIGS. 2 and 3, the subscriber 1 accommodated in the local switch (LS) 2 _1
1, the subscriber 1 ₂ accommodated in the local switch (LS) 2 ₂
While the call is in progress, at the time of COM, the conference call device (CFC) 31 installed in the toll switch (TS) 3 has reached the start time of the conference call with the reserved subscriber 1 ₁ as the organizer. Upon detection, the telephone number DN ₁ subscriber 1 ₁ with respect to local exchange (LS) 2 _1, connection indication and a call type identification information CLI (= logic "1") information IAM [DN ₁ + CL
I (= “1”)] to the local exchange (LS) 2 ₁ .

In the local exchange (LS) 2 ₁ , the central control unit (CC) 22 has the connection instruction information IAM [DN ₁ +
CLI (= “1”)], the call control data (CD) 232 corresponding to the incoming call is sent to the main memory device (MM) 23.
Connection instruction information IAM [DN ₁ + CL
I (= “1”)] call type identification information CLI
(= “1”) is stored and an incoming call connection to the incoming subscriber 1 ₁ determined by the telephone number DN ₁ is attempted, but when it is identified that the incoming subscriber 1 ₁ is in a call, the call type identification unit ( CLS) 222 is started.

The activated call type identification unit (CLS) 222
Refers to the call control data (CD) 232 corresponding to the incoming call in the main memory (MM) 23, and identifies that the stored call type identification information CLI is set to logic "1". , The incoming call is determined to be a call target during the call, the call waiting circuit (CWC) 27 is captured, and the network (N
W) 21 is inserted into the connection between the subscriber 1 ₁ and the subscriber 1 ₂ and the incoming call indication sound IIT generated by the incoming call circuit (CWC) 27 is given to the subscriber 1 ₁ and the voice of the subscriber 1 ₂ . Superimpose on and listen.

Subscriber 1 who listened to the incoming call indication sound IIT
_{When 1} executes a predetermined operation for temporarily holding a call with the subscriber 1 ₂ and answering an incoming call, for example, hooking, the subscriber 1 ₁ sends a call to the local exchange (LS) 2 _1. And the hooking signal HKG is returned.

In the local exchange (LS) 2 ₁ , when the central control unit (CC) 22 receives the hooking signal HKG returned from the subscriber 1 ₁ , the long distance exchange (TS) 3
Response information ANS to the conference call device (CFC) 31 via
, The network (NW) 21 is controlled and the connection between the subscriber 1 ₁ and the subscriber 1 ₂ is temporarily released, the subscriber 1 ₂ is connected to the signal tone generation circuit (TNS) 26, and the signal tone is generated. The subscriber 1 ₂ is made to hear the waiting tone HST generated by the generating circuit (TNS) 26, and the subscriber 1 _{1 is connected} to the toll switch (T
S) 3 to connect to the conference call device (CFC) 31
The subscriber 1 _{1 is made} to listen to the conference call guidance GDS generated by the telephone conference device (CFC) 31.

The conference call device (CFC) 31 that has received the response information ANS is the subscriber 1 who is a participant in the conference call.
And telephone number DN ₃ of _3, the call type identification information CLI (= logic "1") connections and a command information IAM [DN ₃ + CLI
(= "1")] to transfer the local exchange (LS) 2 _3, is sent a call signal RG to the subscriber 1 ₃ from local exchange (LS) 2 _3, the subscriber 1 ₃ in response Local exchange (LS) 2 ₃ which received the returned off-hook signal FHK
Response information AN to the telephone conference device (CFC) 31.
When S is returned, the conference invitation guidance GDS is sent to the subscriber 1 ₃ via the toll switch (TS) 3 and the local exchange (LS) 2 _3, and the other participant, the subscriber 1 ₄ is mentioned above. Call in the same process as the conference call guidance GDS
, The subscribers 1 ₁ , 1 ₃ and 1 ₄ are connected via a telephone conference device (CFC) 31 to make a conference call CNF.
Is possible.

It should be noted subscriber 1 ₃ and 1 if ₄ either was busy also local switch (LS) 2 ₃ is local switch (LS) subscribers in the same processes as in 2 ₁ 1 ₃ or 1 ₄ allowed to listen to the incoming call display sound IIT, to allow notification to hold a telephone conference.

Next, an embodiment of the present invention (claim 2) is shown in FIG.
And it demonstrates using FIG. 2 and 4, the subscriber 1 accommodated in the local switch (LS) 2 _1
1, the subscriber 1 ₂ accommodated in the local switch (LS) 2 ₂
During the call, the subscriber 1 ₃ accommodated in the local exchange (LS) 2 ₃ wishes to make a call with the subscriber 1 ₁ that does not require an emergency (hereinafter referred to as a general incoming call), and the local exchange (L
S) 2 ₃ After calling ORG, local exchange (LS) 2 ₁
Connection instruction information IAM including a telephone number DN ₁ subscriber 1 _1, and a call type identification information CLI (= logic "0") to the
[DN ₁ + CLI (= "0")] to the local exchange (LS)
And transfers it to the 2 _1.

In the local exchange (LS) 2 ₁ , the central control unit (CC) 22 has the connection instruction information IAM [DN ₁ +
CLI (= “0”)], the call control data (CD) 232 corresponding to the incoming call is sent to the main memory device (MM) 23.
Connection instruction information IAM [DN ₁ + CL
I (= “0”)] call type identification information CLI
(= “0”) is stored, and an incoming call connection to the incoming subscriber 1 ₁ determined by the telephone number DN ₁ is attempted, but when it is identified that the incoming subscriber 1 ₁ is in a call, the call type identification unit ( CLS) 222 is started.

The activated call type identification unit (CLS) 222
Refers to the call control data (CD) 232 corresponding to the incoming call in the main memory (MM) 23, and identifies that the stored call type identification information CLI is set to logical "0". , Activates the call receiving unit (CWF) 221.

The activated call waiting section (CWF) 221
Refers to the subscriber data (SD) 231 ₁ corresponding to the called subscriber 1 ₁ in the main memory (MM) 23. Assuming that the subscriber 1 ₁ has a contract for using the call waiting function, the call waiting information CWI in the subscriber data (SD) 231 ₁ is set to logic “1”.

In such a case, the call waiting unit (CWF)
When 221 identifies that the incoming call information CWI in the subscriber data (SD) 231 ₁ is set to the logical “1”, it determines that the subscriber 1 ₁ can use the incoming call function,
Captures the call waiting circuitry (CWC) 27, and inserted into the connection of the network (NW) call waiting circuit via 21 (CWC) 27 subscriber 1 ₁ and the user 1 _2, subscriber 1 ₁
The incoming call display sound IIT is superposed on the voice of the subscriber 1 ₂ and is heard.

Subscriber 1 who listened to the incoming call indication sound IIT
_{When 1} executes a predetermined operation for temporarily holding a call with the subscriber 1 ₂ and answering an incoming call, for example, hooking, the subscriber 1 ₁ sends a call to the local exchange (LS) 2 _1. And the hooking signal HKG is returned.

In the local exchange (LS) 2 ₁ , when the central control unit (CC) 22 receives the hooking signal HKG returned from the subscriber 1 ₁ , the network (NW)
21 is controlled to temporarily release the connection between the subscriber 1 ₁ and the subscriber 1 ₂ , connect the subscriber 1 ₂ to the signal tone generating circuit (TNS) 26, and the signal tone generating circuit (TNS) 26 is generated. The waiting tone HST is heard by the subscriber 1 ₂ , and the subscriber 1 ₁ is connected to the subscriber 1 ₃ through the local exchange (LS) 2 ₃ so that the subscribers 1 ₁ and 1 ₃ can communicate with each other through COM. To do.

If the subscriber 1 ₁ does not have a contract for using the call waiting function, the subscriber data (SD) 2
The incoming call information CWI in 31 ₁ is set to logic “0”.

In such a case, a call waiting section (CWF)
When 221 identifies that the call waiting information CWI in the subscriber data (SD) 231 ₁ is set to logic "0", the subscriber 1 _{1 determines} that the call waiting function is disabled,
The busy information BSY is returned to the local exchange (LS) 2 ₃ .

The local exchange (L that receives the busy information BSY)
S) 2 ₃ returns the busy tone BT to the subscriber 1 ₃ . As is clear from the above description, according to the present embodiment, the switching network adds the call category identification information CLI to the generated call, and the local exchange (L) having the call category identification unit (CLS) 222.
S) 2 ₁ analyzes the call category identification information CLI of the incoming call when the called subscriber 1 ₁ is busy and determines that the call is the call receiving target call (call category identification information CLI = “1”). Regardless of whether the person 1 ₁ has a contract for using the call waiting function, the call waiting section (CWF) 221 is activated to make the subscriber 1 ₁ hear the incoming call indication sound IIT and receive the call. In order to notify, for example, a reserved telephone conference can be held at a designated time even if the host is in a call and has not signed a contract for using the incoming call function.

It is to be noted that FIG. 2 is merely an embodiment of the present invention. For example, the call to be received during a call is not limited to a call for calling a conference call, and many other variations such as an emergency call are considered. However, the effect of the present invention does not change in any case.
Further, the exchange 100 to be the subject of the present invention is not limited to the exchange 2 shown in the figure, and many other modifications can be considered, but in any case, the effect of the present invention does not change.

[0046]

As described above, according to the present invention, an incoming call that requires an emergency can be notified to the called subscriber who is currently talking on the exchange, regardless of the usage qualification of the incoming call waiting function. , Convenience for the subscriber of the exchange is improved.

[Brief description of drawings]

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

FIG. 2 is a diagram showing a switching network according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a conference call connection process in FIG.

FIG. 4 is a diagram showing an example of a general incoming call connection process in FIG.

FIG. 5 is a diagram showing an example of a conventional switching network.

FIG. 6 is a diagram showing an example of a conference call connection process in FIG.

[Explanation of symbols]

 1 subscriber 2 local exchange (LS) 3 long-distance exchange (TS) 21 network (NW) 22 central controller (CC) 23 main memory (MM) 24 outgoing trunk (OGT) 25, 28 incoming trunk (ICT) 26 Signal Tone Generation Circuit (TNS) 27 Call Receiving Circuit (CWC) 31 Conference Call Device (CFC) 100 Switch 101 Call Receiving Function 102 Call Type Identifying Means 200 Subscriber 221 Call Waiting Unit (CWF) 222 Call Type Identification Part (CLS) 231 Subscriber data (SD) 232 Call control data (CD)

Claims (2)

[Claims] 1. In an exchange (100) having a call waiting function (101), call type information for identifying whether or not to make a call to the call waiting function (101) is added to an originating call. Call category identifying means (102) for identifying the call category information added to the call received by the calling subscriber (200).
And the call type identification means (102) identifies the incoming call as a call type that is a target of the incoming call receiving function (101), the incoming call incoming call to the called subscriber (200). A terminal interrupt control system characterized by activating a function (101). 2. The exchange (100), when the call type identification means (102) identifies the incoming call as a call type that is not a target of the call waiting function (101), the called subscriber. (200) Call waiting function (10
After analyzing the usage qualification of 1), the call receiving function (10
The terminal interrupt control system according to claim 1, wherein 1) is activated.