JPH06225011A - Incoming call request control system for electronic exchange - Google Patents

Abstract

PURPOSE:To efficiently deal with a new incoming call request by selecting either the switching of a speech destination by call-waiting telephone or transfer to another communication terminal by an incoming call destination for the new incoming call request while communication is being performed. CONSTITUTION:When the new incoming call request from the communication terminal 4 to the communication terminal 2 is received while the communication is bing performed, the terminal 2 holds the communication with the terminal 3 that is a communication opponent, and when the call-waiting telephone is desired, the terminal 2 returns a signal representing the call-waiting telephone to an electronic exchange 1. The electronic exchange 1 receives a service signal, and discriminates the fact that the switching to the new incoming call request is requested by the connection selection part 9 of an in-communication incoming call connection part 7, and permits the communication between the terminals 2, 4. Also, when the new incoming call request from the terminal 4 is transferred, the electronic exchange 1 receives a signal representing the transfer of the request from the terminal 2, and discriminates the fact that the transfer of the new incoming call request is requested by the connection selection part 9 of the in-communication incoming call connection part 7, and permits the communication with the terminal 5 designated in advance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic exchange for controlling the connection of a plurality of communication terminals via a plurality of lines, and more particularly to a connection operation for a new incoming call request to a communication terminal in communication. The present invention relates to an incoming call request control system of an electronic exchange suitable for controlling the incoming call destination based on an instruction from a communication terminal and improving convenience of incoming calls.

[0002]

2. Description of the Related Art In a conventional general electronic exchange, as a service for notifying a destination of a new incoming call request that occurs during communication, for example, "Electronic Information and Communication Handbook" (1988) edited by The Institute of Electronics, Information and Communication Engineers. The so-called call waiting service described on page 2647 (published by Ohmsha, Ltd.) is known. However, this call waiting service only switches the line connection by performing a hooking operation from the communication terminal of the called party in response to a new incoming call request during communication. That is, the service is executed by switching between the communicating state and the held state in the relationship between the called party and the communicating party in the communicating state, and the one-to-two party of the calling party who has made a new communication request. However, it is not possible to move to another service targeted at the fourth party.

Further, a service for changing the destination of an incoming call request and making an incoming call request to another new communication terminal is
It is known as a so-called incoming call transfer service such as an absence transfer service, a response delay transfer service, or a communication transfer service. However, in the conditional transfer service such as the absence transfer service or the response delay transfer service, it is necessary to register the transfer service state as subscriber data in advance in the electronic exchange. Therefore, it is not possible to shift to another service that is not in the transfer service registration state. Further, the in-communication transfer service transfers only to the in-communication call, and cannot transfer a new incoming call (incoming request) that has occurred in the in-communication state.

Therefore, in response to a new incoming call request that occurs in the communicating state, the communication partner is switched in the same manner as the call waiting service based on the intention of the called party, or the communicating state of the call is directly connected. Then, it is not possible to change the destination of the new incoming call request and control whether to transfer to another new communication terminal.

[0005]

The problem to be solved by the present invention is that in the prior art, the control for another new incoming call request that occurs in the communicating state is limited to the switching of the communication partner by the call waiting service. That is, a large incoming request cannot be transferred to another communication terminal. The object of the present invention is to solve these problems of the prior art, and in response to a new incoming call request that occurs in the communicating state, the callee service is used to switch the communication partner and a new other communication is made by selection at the incoming call destination. It is an object of the present invention to provide an incoming call request control system for an electronic exchange capable of efficiently handling a new incoming call request that occurs during communication by performing either control of transfer to a terminal.

[0006]

In order to achieve the above object, an incoming call request control system for an electronic exchange according to the present invention comprises:
(1) In an electronic exchange that accommodates a plurality of communication terminals via a plurality of lines, when a new incoming call request from another communication terminal to a communication terminal in communication is received, Characterized by providing an in-communication incoming call connection unit that performs connection control for a new incoming call request based on a call waiting service instruction to which the communication terminal of the incoming call destination in the communication state responds or an instruction to change the incoming call destination of a new incoming call request And (2) In the incoming call request control system for an electronic exchange as described in (1) above, the in-communication incoming call connection unit is based on a new incoming call request from another communication terminal to the communication terminal in the communicating state. The incoming call information indicating the reception of a new incoming call request, based on the notification unit that notifies the incoming call destination communication terminal in the communication state, and the response from the incoming call destination communication terminal to the incoming call information from this notification unit, It is characterized by comprising a connection selection unit for selecting either call waiting service control or transfer control.

[0007]

According to the present invention, when a new incoming call request from another communication terminal is given to the communication terminal in the communicating state, the electronic exchange sends the call to the called party in the communicating state.
A signal indicating that there is a new incoming call request is sent, and communication with the communication terminal in communication is put on hold based on the information indicating that the incoming call control from the called party for this signal is requested. The communication for the request is established, the communication partner is switched, or the communication with the communication terminal in the communication state is continued, the destination is changed in response to a new incoming request, and the new other communication terminal is set. Controls whether incoming requests are made. As a result, it is possible to effectively deal with a new incoming call request that occurs in the communicating state, based on the intention of the called party.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a configuration relating to the present invention of a switching network having an electronic exchange for performing incoming call request control of the present invention. In the figure, 1 is an electronic exchange that controls the line connection of a plurality of communication terminals, 2 is a callee terminal from which the operation according to the present invention is activated, and 3 is this callee terminal 2 in the initial state. The terminal 4 that is a communication partner communicating with the terminal 4 is a terminal that is a new source that sends an incoming call request to the terminal 2 that is communicating, and the reference numeral 5 is a transfer destination terminal that is connected to the terminal 4 by the electronic exchange 1. , 6 is a main control unit that controls the overall operation of the electronic exchange 1, 7 is a communication incoming call connection unit that constitutes an incoming call request control system according to the present invention, 8
Is a notification unit according to the present invention, which notifies the terminal 2 of the reception of this new incoming call request as the incoming call information during communication, based on a new incoming call request from the terminal 4 to the terminal 2 that is in communication with the terminal 3. , 9 performs a call waiting service or a transfer control to the terminal 5 for an incoming call from the terminal 4 based on a response from the terminal 2 to the incoming call information from the notification unit 8. The connection selection unit according to the present invention selects any one of them.

The processing operation according to the present invention of the electronic exchange 1 having such a configuration will be described. First, the new source terminal 4 sends a signal for a call request to the electronic exchange 1. In the electronic exchange 1, since the destination terminal 2 which is the destination of this signal is already in communication with the terminal 3 of the communication partner, the notification terminal 8 of the in-communication incoming connection unit 7 causes the destination terminal A signal for notifying the incoming call during communication (incoming call information during communication) is sent to 2.

At this time, when the called terminal 2 puts the communicating state with the called terminal 3 on hold, establishes communication for a new incoming request from the called terminal 4, and switches the called party. That is, when the call waiting service is performed, the called terminal 2 returns a signal to that effect to the electronic exchange 1. The electronic exchange 1 receives this call waiting service signal, identifies that "switching" is requested for a new incoming call request by the connection selecting section 9 of the incoming call connecting section 7, and the callee of the incoming call destination is identified. The communication between the terminal 2 and the terminal 3 of the communication partner is transited to the hold state, and the communication between the terminal 2 of the callee and the terminal 4 of the caller is established to be in the communicating state.

Further, the terminal 2 of the called party continues the communication with the terminal 3 of the communicating party in the communicating state, and changes the called party in response to a new incoming call request from the terminal 4 of the calling party. When transferring to the new transfer destination terminal 5, the call destination terminal 2 returns a signal to that effect to the electronic exchange 1. The electronic exchange 1 receives this signal 24, identifies by the connection selection unit 9 of the in-communication incoming call connection unit 7 that "transfer" is requested in response to a new incoming request, and is designated in advance. A signal is sent to the transfer destination terminal 5 for transfer to the transfer destination terminal 5. At this time, the information of the new transfer destination terminal 5 may be registered in advance in the electronic exchange 1,
The signal from the destination terminal 2 may include the information, and the electronic exchange 1 may receive the signal and identify the information. When the transfer destination terminal 5 can respond to the signal from the electronic exchange 1, it returns a signal to that effect to the electronic exchange 1, and the electronic exchange 1 receives this signal and the source terminal 4 and the transfer destination terminal 5 are established.

As described above, the electronic exchange 1 of this embodiment is
When a new incoming call request is given from the terminal 4 to the terminal 2 that is in communication with the terminal 3, the terminal 2 and the terminal 3 are sent based on the information indicating that the incoming call control from the incoming call destination terminal 2 is requested.
Communication with a new incoming request from the terminal 4 is established and the communication partner is switched, or
Alternatively, the communication with the terminal 3 is continued, the destination of the terminal 4 is changed, and it is controlled whether or not to make an incoming request to the terminal 5. As a result, it is possible to effectively deal with a new incoming call request that occurs in the communicating state, based on the intention of the called party. Hereinafter, such operation will be described in more detail with reference to FIG.

FIG. 2 is a sequence diagram showing an embodiment of the connection control operation according to the present invention of the electronic exchange in the exchange network shown in FIG. In the present embodiment, as shown in FIG. 1, a destination terminal 2 that is a starting source of an operation according to the present invention, a terminal 3 that is a communication partner communicating with the destination terminal 2 as an initial state, and a new call origination. The case where the original terminal 4 and the transfer destination terminal 5 are accommodated in the same electronic exchange 1 is taken as an example to show the exchange of signals between the user and the network when the present invention is applied. .

In the figure, 21 is an incoming call request signal for making an outgoing call request from a new outgoing call terminal 4, 22 is the incoming call request signal 21, and the incoming call destination terminal 2 is in the communicating state. Therefore, the in-communication incoming call notification signal for notifying the incoming call destination terminal 2 of the incoming call in progress, and 23 is the incoming call destination notified by the in-communication incoming call notification signal 22 that there is an incoming call request during communication. When the terminal 2 of the terminal 2 puts the communication-in-progress state with the terminal 3 of the communication partner on hold, establishes communication for a new incoming request from the terminal 4 of the transmission source, and switches the communication partner, the data is sent to the electronic exchange 1. An incoming call control request (switching) signal 24 is an incoming call destination terminal 2 notified by the incoming call notification signal 22 that there is an incoming call request during communication.
However, the communication with the terminal 3 of the communication partner in the communicating state is continued as it is, and in response to a new incoming request from the source terminal 4, the destination is changed to the new destination terminal 5. In the case of transfer, an incoming call control request (transfer) signal 25 to be sent to the electronic exchange 1, 25 is an incoming call control request (transfer) signal 24, and the electronic exchange 1 makes an incoming call request to the transfer destination terminal 5. Is an incoming request (transfer) signal for
Is a response signal returned to the electronic exchange 1 because the terminal 5 of the transfer destination responds to the incoming request (transfer) signal 25.

The exchange of each signal will be described below. First, the terminal 4 that is a new originator sends an incoming call request signal 21 for a call origination request to the electronic exchange 1. Electronic exchange 1
To notify the incoming call destination to the incoming call destination terminal 2 because the incoming call destination terminal 2 that is the incoming call destination of the incoming call request signal 21 is already in communication with the communication destination terminal 3. The in-communication incoming call notification signal 22 is transmitted. At this time, when the terminal 2 of the called party puts the communication state with the terminal 3 of the called party on hold, establishes communication for a new incoming request from the terminal 4 of the calling party, and switches the called party, the called party is called. The terminal 2 of the terminal 2 receives the incoming control request (switch) signal 2 to that effect.
3 is returned to the electronic exchange 1. The electronic exchange 1 receives the incoming call control request (switching) signal 23, identifies that "switching" is requested in response to the new incoming call request, and recognizes the incoming call destination terminal 2 and the communication partner terminal. 3 to the hold state, and the destination terminal 2 and the source terminal 4
The communication between them is established, and the communication state is set.

Further, the destination terminal 2 continues the communication with the communication destination terminal 3 in the communicating state, and changes the destination in response to a new incoming request from the source terminal 4. Then, when the call is transferred to the new transfer destination terminal 5, the call reception destination terminal 2 sends the call control request (transfer) signal 24 to that effect.
Is returned to the electronic exchange 1. The electronic exchange 1 receives the incoming call control request (transfer) signal 24 and identifies that "transfer" is requested in response to the new incoming request.
In order to transfer to the transfer destination terminal 5 designated in advance, the incoming request (transfer) signal 25 is sent to the transfer destination terminal 5. At this time, the information of the new transfer destination terminal 5 is previously stored in the electronic exchange 1.
The information may be included in the incoming call control request (transfer) signal 24, and the electronic exchange 1 may receive the incoming call control request (transfer) signal 24 and identify the information. . When the transfer destination terminal 5 can respond to the incoming request (transfer) signal 25, it returns a response signal 26 to the electronic exchange 1, and the electronic exchange 1 receives the response signal 26 and
Communication is established between the source terminal 4 and the transfer destination terminal 5.

Here, the above-mentioned incoming call control request (switching)
Regarding the formats of the signal 23 and the incoming call control request (transfer) signal 24 and the identification of the signal in the electronic exchange 1,
A specific example will be described. For example, in the case of a normal analog subscriber line interface, as the incoming call control request (switching) signal 23 and the incoming call control request (transfer) signal 24, a PB (push button) signal is used after the "hooking signal". Digit or multi-digit "special number (not a selection signal for identifying a normal subscriber, but a special number that means a special service request)" is entered, that is, "hooking signal + special number" format Then, the electronic exchange 1 can identify the requested content by receiving the "special number" using the "PB signal receiver" mounted to receive a normal PB signal. is there.

This hooking signal is sent by the electronic exchange 1
In order to receive the "PB signal" sent continuously,
This is an opportunity to connect the “PB signal receiver” and shift to the PB signal reception waiting state. Also, ISD
In the case of the N interface, the incoming control request (switching) signal 23 and the incoming control request (transfer) signal 24 are IS
It is defined in the DN protocol. For example, the “feature activation information element” of the “additional information (INFOmation) message” may be used, or a new dedicated message may be defined. Electronic exchange 1
By receiving the message, the request content can be identified.

FIG. 3 is a flow chart showing an embodiment of the processing operation according to the present invention of the electronic exchange shown in FIG. When a new call request signal is received from the other terminal (source) to the called party who is communicating with the other party (step 3)
01, 302), and sends an incoming call notification signal for notifying an incoming call to the called party (step 30).
3). The incoming call control request signal returned from the called party in response to the incoming call notification signal during communication is received (step 30
4) The contents are identified (step 305).

If the identification result is a connection switching request, the callee and the communication partner 3 are transited to the hold state, and the communication between the callee and the caller is established and the communication is made (step). 306). If the identification result is a transfer request, the destination is changed to the transfer destination designated in advance in response to a new incoming request from the source (step 30).
7) The incoming call request signal is transmitted (step 308). After receiving a response signal from the transfer destination that it is possible to respond to this incoming request signal (step 309), communication between the source and the transfer destination is established (step 310).

As described above with reference to FIGS. 1 to 3, in the electronic exchange of this embodiment, when a new incoming call request is given to the terminal in the communicating state, the incoming call is returned from the called party. Based on the incoming call control signal, it is possible to control whether to switch the communication partner of the incoming call destination or transfer the new incoming call request source to another terminal. As a result, it is possible to easily and economically perform an effective incoming call request control service based on the intention of the called party for a new incoming call request that has occurred during communication.

As an example of a concrete application service of this embodiment, a telephone answering service, which is realized by connecting a voice storage device such as a voice mail device to a public network switch, can be considered. For example, if the called party receives a new incoming call while communicating with a certain party, and while making an important call such as a business talk with the communicating party, the incoming call control request of "Forward" is issued and the new call is received. Such an incoming call can be transferred to the voice storage device, the message can be recorded in the voice storage device, and after the end of the previous call, the voice storage device can be accessed to check the recorded content. When a new incoming call is desired to be received immediately, an incoming call control request of "switching" is issued, and the first party and the second party are used in the same manner as the normal call waiting service.
It is also possible to switch between the second person and talk with both parties.
The important thing here is to do a "transfer" or
Whether or not to perform "switching" can be effectively dealt with according to the situation at that time, based on the intention of the called party.

The present invention is not limited to the embodiment described with reference to FIGS. 1 to 3, and various modifications can be made without departing from the scope of the invention. For example, an electronic exchange that performs exchange processing is a PBX (Private Br).
It may be a private branch exchange (e.g. anch eXchange) or a central office exchange. Further, in the present embodiment, the called party that is the starting source of this operation, the communicating party that is in communication with this called party in the initial state, and the new calling party and the forwarding party are accommodated in the same electronic exchange. Although the cases have been shown, it is needless to say that this type of incoming request control can be executed even when the electronic exchanges are housed in different electronic exchanges and extend over the electronic exchanges. Furthermore, the signals and the like used in this embodiment are not limited to the normal analog subscriber line interface, but may be the same kind of functions in the protocol system such as ISDN interface.

[0024]

According to the present invention, the control for a new incoming call request generated during the communication is not limited to the switching of the communication partner by the call waiting service, and the new incoming call request is sent to another communication terminal. It is possible to transfer, and these controls can be selected by the callee who has received a new incoming request in the communicating state, and efficiently copes with the new incoming request generated in the communicating state. Therefore, it is possible to improve the convenience of the electronic exchange.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a configuration relating to the present invention of a switching network having an electronic exchange for performing incoming request control of the present invention.

2 is a sequence diagram showing an embodiment of a connection control operation according to the present invention of an electronic exchange in the exchange network in FIG.

FIG. 3 is a flowchart showing an embodiment of the processing operation of the electronic exchange of FIG. 1 according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic exchange 2-5 Terminals 6 Main control section 7 Incoming communication connection section 8 Notification section 9 Connection selection section 21 Incoming call request signal 22 Incoming communication notification signal 23 Incoming call control request (switching) signal 24 Incoming control request (transfer) signal 25 Incoming request (transfer) signal 26 Response signal

Claims (2)

[Claims] 1. An electronic exchange that accommodates a plurality of communication terminals via a plurality of lines, when receiving a new call-in request from another communication terminal to a communication terminal in communication, On the other hand, in-communication incoming call connecting means for performing connection control for the new incoming call request based on a call waiting service instruction to which the incoming call destination communication terminal responds or an instruction to change the incoming call destination of the new incoming call request. An incoming call request control system for an electronic exchange, comprising: 2. The incoming call request control system for an electronic exchange according to claim 1, wherein the in-communication incoming call connection means is based on a new incoming call request from another communication terminal to the communication terminal in the communicating state. Notifying means for notifying the incoming communication terminal in communication indicating reception of a new incoming call request to the incoming communication terminal in the communicating state, and a response from the incoming communication terminal to the incoming call information in communication from the notifying means Based on
An incoming call request control system for an electronic exchange, comprising: connection selection means for selecting either the call waiting service control or the transfer control.