JPH03280775A - Three party speaking system - Google Patents

Abstract

PURPOSE:To achieve a three party speaking by connecting a remote party telephone when an incoming call therefrom is received by other telephone in the case where a telephone to which a call waiting service is previously applied is busy. CONSTITUTION:While a subscriber 12 is speaking with a subscriber 11, when a subscriber 13 calls the subscriber 12 and its call is received, a central control unit 15 is identifies that a call waiting service is previously applied to the sub scriber 12. Then, it activates a call waiting means 16 to perform a call receiving processing by the hooking of the subscriber 12, connect the subscribers 12 and 13 and make them to speak through a speech channel switch 14. When the subscriber 13 desires to make a three party speech, the control unit 15 detects the next hooking of the subscriber 12 and receives a prescribed special number. A call waiting/three party speech transition means 18 is selected to shift to a three party speech means 17 so that the subscribers 11, 12, and 13 are con nected to perform the three party speech.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a three-party communication system in an exchange.

[Conventional technology]

In the conventional three-way call system, if a subscriber who has been granted a three-way call service in advance wants to include another third party during a call with a subscriber, the subscriber who has been granted a three-way call service can A three-party call is performed by detecting hooking from a third party, receiving a new telephone number of a third party from this subscriber, and calling and connecting the third party. or,
In the conventional call-waiting service connection method, if a subscriber to whom call-waiting service has been granted receives an incoming call while talking with a certain subscriber, an interrupt tone notifies the subscriber that the call has arrived, and the subscriber to whom this service has been granted By detecting hooking from a subscriber, the subscriber who is currently on a call is put on hold, and if the call is received later, the second service connects the subscriber again. However, a method is adopted in which, by detecting F.

[The problem that the invention aims to solve is ILL12] In the conventional three-party calling system, when a subscriber who has been granted three-party calling service receives a new telephone number of a third party, the third party is called. 7. Three-way calls are realized by connecting.
′: There is a problem that this three-way call cannot be realized if the second party who wishes to do so has already picked up the receiver.

It is an object of the present invention to
Also, incoming calls to subscribers who have been provided with three-way calling service
The purpose of the present invention is to provide a three-party call system that allows a three-party call including other subscribers.

[Means for Solving the Problems] The three-party telephone call system of the present invention provides for a storage program controlled switching system in which, during a call between the first and second subscribers, the first and second subscribers are unable to make a three-party call. When an incoming call of a third subscriber desiring a service is detected, the first hooking of the second subscriber to whom the waiting buzzer service has been previously granted is detected; - connect the second subscriber and the third subscriber by a routing f stage - hold the first subscriber and monitor the second hooking of the second subscriber; When the second hooking is detected, the predetermined number information from the second subscriber is transferred to the three-party communication means by the call waiting/three-party communication means, and the first. The subscriber is connected to the second and third subscribers.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a flowchart showing the processing flow of an embodiment of the present invention, and FIG. 2 is a block diagram of an exchange system for explaining an embodiment of the present invention.

In FIG. 2, the communication path switch] 4 is the subscriber 1-1.
The communication path is closed under the control of the central control unit 15. The central control device 15 is
Co., Ltd. which provides the procedure of eating.1 Eating L.
stage 16, and a communication means 17 that provides the procedure for three-way communication.
A call wading/three-way call transition means 18 which provides a procedure for transitioning from call to call to each call is connected to h-1: and performs respective processing. Here, subscriber 12 is a subscriber whose call waiting service has been completed in advance, subscriber 12 is a subscriber who is on a call with subscriber 12, and subscriber 13 is a subscriber who is on a call with subscriber 12.
Assume that the subscriber desires to make a three-way call with subscriber 2 and subscriber 11.

Hereinafter, the flow of processing in the three-party telephone call system will be explained using Figures 1-1 and 2. First, when the subscriber 13 dials the telephone number of the calling subscriber 2, the central control unit 4 receives this telephone number and determines whether the subscriber 2 is busy. Step 1) If the call is not in progress, perform normal incoming call processing 1-(Step '7)
, if the call is in progress, the subscriber 12 is a subscriber who has been provided with call-way day buzzer service in advance;
When this is identified, the call waiting means 16 is activated to perform incoming call processing by hooking the subscriber 12, thereby connecting the subscribers 12 and 13 via the channel switch 14 and making a call (step 2).

At this time, subscriber 13 informs subscriber 12 that he wants to make a three-way call. In this state, the central controller 15 monitors the next hooking of subscriber ], 2 (step 3), and if it detects the hooking of subscriber 12, it continues the three-way call from subscriber ] 2 to the call waiting state. Step 4: Receive and identify a predetermined special number for transition to
). As a result, the call waiting 3-party call transition means 18 is selected (Step 5), and the transition is made to the 3-party call transition means 7. The subscriber 12. Three-way call processing is performed to connect subscriber 13 and subscriber 11 (step 16).

Figure 1 for explaining this embodiment shows a case in which subscribers 1-3 are accommodated in the same switching system as subscriber 12, or incoming calls from subscribers accommodated in other stations. , three-way calls can also be handled using the same procedure.

〔Effect of the invention〕

As explained above, the present invention detects the first hooking of a second subscriber to whom a call waiting service has been provided in advance, and connects the second subscriber and the third subscriber by the call waiting means. When the second hooking is detected, predetermined number information is received and identified from the second subscriber, and the call waiting/three-party call transition means transitions to the three-party call means, and the first subscriber is Since the configuration is configured to connect to the second and third subscribers, even if the third subscriber has already picked up the handset, the call will be received by the second subscriber to whom the three-way call service has been granted, and the call will be sent to the first subscriber. This has the effect of allowing a three-party call including the subscriber to be made.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing the flow of processing in an embodiment of the present invention, and FIG. 2 is a diagram for explaining the embodiment of the present invention. 11-13...Subscriber, 14...Call path switch, 15...Central control unit, 16...
...Call waiting means, 17...
Three-way call means, 18...Call waiting/three-way call transition means.

Claims (1)

[Claims] In a storage program controlled exchange, when the first and second subscribers are on a call and an incoming call of a third subscriber who desires a three-way call with the first and second subscribers is detected, call waiting is performed. The second service is provided with the service in advance.
detects the first hooking of the subscriber, connects the second subscriber and the third subscriber by call waiting means, puts the first subscriber on hold, and hooks the second subscriber. The second hooking is monitored, and when the second hooking is detected, predetermined number information is received and identified from the second subscriber, and the call waiting/three-party call transition means transitions to the three-party call means. and connecting the first subscriber with the second and third subscribers.