JPH1168975A - Substitute polling device of exchange, its method and recording medium recording program for allowing computer to execute method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the increase of a load by reducing the processing of a processor housing call-originating subscribers at a packet exchange in data communication such as personal computer communication. SOLUTION: When a called subscriber 2 is busy at the time of originating a call from a call originator 1 to the called subscriber 2, substitute polling is asked to a substitute polling processor 33 from the processor housing call- originating subscriber 31. This processor 33, instead of the call originator 1, polls to the subscriber 2, and when communication state with the subscriber becomes possible, from busy state, informs the originator 1 of the effect. Thereby, the originator 1 is enabled to set re-calling. As the processor 31 on longer has to monitor the subscriber 2 and to poll for setting re-calling, the processing is reduced to make the processor 31 free from the increase of the load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polling proxy device for an exchange, a polling proxy method, and a recording medium storing a program for causing a computer to execute the polling proxy device, and more particularly to communication between personal computers (hereinafter simply referred to as personal computer communication). In a data communication typified by the following, a polling proxy device, a polling proxy method, and a program for causing a computer to execute the polling proxy device are described in which data is divided into control units called packets and transmitted and received. It relates to a recording medium that has been used.

[0002]

2. Description of the Related Art The operation at the time of making a call in this type of conventional data communication will be described with reference to FIG. In FIG. 3, the caller sends the same called party a plurality of times (S 1 to
Even if the calling operation of S3) is performed, all become busy.
An operation when a communication line cannot be established is shown as a sequence.

[0003] First, the first calling operation (S1) will be described. A call request packet (PKT) is transmitted from the caller to the called subscriber processor via the caller processor. The called subscriber accommodation processor sends an incoming call packet to the called subscriber. At this time, since the called subscriber is busy, a disconnection request packet is transmitted to the calling party accommodation processor via the called subscriber accommodation processor.

[0004] In response to this, the caller-accommodating processor sends a disconnection instruction packet to the caller. In response, the caller sends a disconnect and acknowledge packet to the called subscriber via the caller-accommodating processor and the called subscriber-accommodating processor. Through the above series of processing S1, the calling operation, the call setting operation, and the call setting disconnection operation due to busy are completed.

If the caller wants to reset the call, the same operation as the above-described series of processing operations S1 must be repeated as shown in FIG. 3 as S2 and S3. It is up to the subscriber.

Japanese Unexamined Patent Publication No. Hei 2-39762 discloses that in a common control type telephone exchange, in addition to the "telephone number" of the called subscriber from the calling subscriber, when the called subscriber is busy,
"Automatic recall request signal" for automatically requesting reconnection
When dialed, the connection between the calling party and the register is maintained, the call of the called party is monitored, and if the called party is not busy, the calling party and the called party are immediately connected. And
When busy, by connecting both subscribers after the end of the busy time, the trouble of recalling at the calling subscriber is eliminated,
There is disclosed a technology that enables a call to be made with a minimum waiting time.

[0007] Japanese Patent Application Laid-Open No. 2-51959 discloses that when a caller dials a busy called party, the call is transferred to a voice storage device to be in a talking state with the voice storage device. There is disclosed a technique in which a voice call is transmitted from a voice storage device to an exchange of a called subscriber and the exchange returns to the caller when the called subscriber returns from the busy state.

[0008]

In the conventional system shown in FIG. 3, when the call connection of the caller is rejected when the called subscriber is busy or the like, the caller resets the call. However, at this time, the caller needs to perform a call resetting operation until the called party is released from the busy state, so that the processor of the packet switch accommodating the caller and the called party is loaded. There is a problem that takes.

In the technique disclosed in Japanese Patent Application Laid-Open No. 2-39762,
In order to eliminate the hassle of re-calling during the telephone exchange, the connection between the caller and the register is maintained until the call of the called party ends, but during this hold, the other party will be connected. There is a problem that you can not talk.

In Japanese Patent Application Laid-Open No. 2-59959,
If the caller and the called party are reversed in order to dial once from the voice storage device to the caller after disconnection, and the call is charged, the charging system may need to be modified.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a polling proxy device for an exchange which can reduce the processing of the calling subscriber accommodating processor and prevent an increase in load, a polling proxy method, and a program for causing a computer to execute the method. The purpose of the present invention is to provide a recording medium.

Another object of the present invention is to enable the caller to monitor the communication status of the called subscriber by using a polling proxy processor even if the called subscriber is busy, so that the caller can communicate with another communication partner. The present invention provides a polling proxy device for an exchange, a polling proxy method, and a recording medium storing a program for causing a computer to execute the method.

[0013]

SUMMARY OF THE INVENTION According to the present invention, there is provided a polling proxy device for an exchange, wherein when a called party corresponding to an outgoing call from a calling party is busy, the called party replaces the calling party. A polling substitute means for monitoring a state and notifying the caller when the called party becomes communicable is provided.

The polling proxy means receives a call proxy request from the caller and generates a call request to the called party on behalf of the caller; Means for generating a call request for notifying the caller that the called party is in a communicable state in response to the reception of the call acceptance from the caller.

A polling proxy method for an exchange according to the present invention includes a first step of monitoring the status of the called party on behalf of the calling party when the called party corresponding to an outgoing call from the calling party indicates a busy state. And a second step of notifying the caller when the called party becomes communicable during the monitoring.

[0016] The first step includes a step of receiving a call proxy request from the caller and generating a call request to the called party on behalf of the caller, and
Generating a call request for notifying the caller that the called party is in a communicable state in response to receiving a call acceptance from the called party in response to the call request. And the step of performing.

The recording medium according to the present invention comprises a first step of monitoring the status of the called party on behalf of the calling party when the called party corresponding to an outgoing call from the calling party indicates a busy state; And a second step of notifying the caller when the called party becomes communicable during the monitoring.

The operation of the present invention will be described. When the communication partner is in a busy state where a communication path cannot be secured, the communication status of the communication partner is monitored on behalf of the caller, and when communication becomes possible, the caller is notified by that fact. A polling proxy processor having a function to save the trouble of the user is provided in the exchange.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic system configuration diagram to which an embodiment of the present invention is applied. Referring to FIG. 1, a packet switch 3 is provided between a caller 1 and a called subscriber 2, and the packet switch 3 includes a caller accommodating processor 31 for accommodating a caller and a called subscriber. And a called subscriber accommodation processor 32 accommodating the subscriber 2, and further includes a polling proxy processor 33 which is a feature of the present invention. This polling agent processor 33 is a recording medium 3 such as a memory.
4 is operated by a program stored in the storage unit 4.

FIG. 2 is a sequence diagram showing the operation of the embodiment of the present invention, and the same parts as those in FIG. 3 are denoted by the same reference numerals. The first series of operations S1 is the same as the series of operations S1 shown in FIG.
A series of processing of a disconnection request due to the busy of the called subscriber and disconnection confirmation by this disconnection request are performed. Since the called subscriber is busy, the following series of processes S4 to S6 are performed. That is, the caller accommodating processor requests the polling proxy processor to perform polling proxy for the called subscriber.

First, a call request is output from the caller-accommodating processor to the polling agent processor, and the polling agent processor issues a disconnection request and a disconnection confirmation to the caller-accepting processor, respectively (process S4).

Thereafter, the polling proxy processor sends a call request to the called subscriber processor on behalf of the originating processor, which sends the incoming call to the called subscriber. .

If the called subscriber is also busy, a disconnection request is sent to the serving subscriber accommodation processor, which outputs a disconnection request to the polling proxy processor. In response to the disconnection instruction, the polling proxy processor disconnects and sends a disconnection confirmation to the called subscriber via the called subscriber accommodation processor.

After a certain period of time, the polling proxy processor generates a call request and sends it to the called subscriber accommodation processor to communicate with the called subscriber again. The called subscriber accommodation processor sends the incoming call to the called subscriber in response to the call request (step S5).

At this time, if the called subscriber is not busy and is in a communicable state, a call reception is sent to the called subscriber accommodation processor. In response to this, the called subscriber accommodation processor sends a connection instruction to the polling proxy processor. The polling proxy processor sends a call request to the caller-accommodating processor, and an incoming call is sent from the caller-accepting processor to the caller.

In response to this, the caller generates a disconnection request to disconnect the connection with the polling proxy processor, and the disconnecting instruction is issued from the processor accommodating the caller to the polling proxy processor. In response to the termination of the disconnection, the polling proxy processor sends a disconnection confirmation to the caller via the caller accommodating processor.

The connection between the polling proxy processor and the called subscriber is also disconnected (disconnection request, disconnection instruction, disconnection confirmation). The above process is shown as S6.

In this state, for the first time, a call request is sent from the caller to the callee, a line can be established (recall setting) between the caller and the callee, and data communication is performed. (Step S7).

[0030]

As described above, according to the present invention, the caller and the caller-accommodating processor are released from the processing caused by the busy state of the communication partner, so that the load can be reduced.

[Brief description of the drawings]

FIG. 1 is a system block diagram to which the present invention is applied.

FIG. 2 is a sequence diagram showing an operation of the present invention.

FIG. 3 is a sequence diagram showing an operation of a conventional exchange.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sender 2 Called subscriber 3 Packet switch 31 Caller accommodation processor 32 Called subscriber accommodation processor 33 Polling agent processor 34 Recording medium

Claims (6)

[Claims] When a called party corresponding to an outgoing call from a calling party indicates a busy state, the state of the called party is monitored on behalf of the calling party and the called party is placed in a communicable state. A polling proxy device for an exchange, comprising polling proxy means for notifying the sender of the fact when it becomes. 2. The polling proxy means receives a call proxy request from the caller and generates a call request to the called party on behalf of the caller, and the called party for the call. Means for generating a call request for notifying the caller that the called party has become communicable in response to receipt of a call acceptance from the caller. Item 7. A polling substitute device for an exchange according to Item 1. 3. A first step of monitoring the status of the called party on behalf of the calling party when the called party corresponding to an outgoing call from the calling party indicates a busy state; And a second step of notifying the caller when the called party becomes communicable. 4. The method according to claim 1, wherein the first step includes a step of receiving a call proxy request from the caller and generating a call request to the called party on behalf of the caller. Generating a call request for notifying the caller that the called party is in a communicable state in response to receiving a call acceptance from the called party in response to the call request. 4. The method according to claim 3, further comprising the step of: 5. A first step of monitoring the status of the called party on behalf of the calling party when the called party corresponding to the outgoing call from the calling party indicates a busy state; And a second step of notifying the caller when the called party becomes communicable, and a program for causing a computer to execute the second step. 6. The method according to claim 1, wherein the first step includes a step of receiving a call proxy request from the caller and generating a call request to the called party on behalf of the caller, and Generating a call request for notifying the caller that the called party is in a communicable state in response to receiving a call acceptance from the called party in response to the call request. 6. The recording medium according to claim 5, comprising the steps of: