JPH01311666A - Electronic exchange with call back function - Google Patents

Abstract

PURPOSE:To enable a call back service to be cancelled also by a setter to be called back by deleting the subscriber information of a call back setter from a memory when the setter to be called back dials a specific number to request the cancellation of the call back service by the setter to be called back. CONSTITUTION:When an extension subscriber 3 desires to perform outgoing connection to an extension subscriber 2 in placing a call with an extension subscriber 1, the extension subscriber 3 hears a busy tone, and sets call back to the extension subscriber 2. At this time, a central control unit 8 stores the subscriber information of the extension subscriber 3 in a memory area corresponding to the extension subscriber 2 in a call back memory 10. Next, when the extension subscriber 2 set at a vacant state after completing the speech with the extension subscriber 1 dials the specific number decided in advance to request the cancellation of the call back service, the central control unit 8 retrieves the call back memory 10, and deletes the subscriber information of the extension subscriber 3 from the memory area. In such a way, it is possible to freely perform the outgoing connection.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an electronic exchange with a callback function.

[Conventional technology]

In the conventional callback method, when the calling subscriber encounters the called subscriber busy, the calling subscriber must set up the callback, and after setting up the callback, only the calling subscriber can handle the call. It had the control right to terminate the back service.

(Three Problems to be Solved by the Invention) In the conventional callback method described above, only the callback setter is provided with the means to cancel the callback service. The drawback is that outgoing connections cannot be made freely until the person cancels this service or the automatic connection by the callback service is completed.

[Means to solve the problem]

The electronic exchange with a callback function of the present invention includes a callback memory in which subscription information of a callback setter is stored for each extension subscriber, and a callback setter in the callback memory when the callback is set. Store subscriber information of a callback setter in a memory area corresponding to a certain extension subscriber, and search the callback memory when the callback setter dials a special number requesting cancellation of the callback service. When the subscriber information of the callback setter stored in the memory area corresponding to the callback setter is detected, the control means deletes the subscriber information of the callback setter from this memory area. have

[Effect]

Therefore, the callback service can be canceled even by the callback setter, and the callback connection can be made freely. .

(Example) Next, practical examples of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an electronic exchange with a callback function of the present invention, and FIG. 2 is a callback memory 1.
0 is a configuration diagram.

This embodiment includes a line circuit 4.5.6 and a communication path switch 7.
, a main memory 9 including a callback memory 10, and a central control unit 8, each accommodating extension subscribers 1, 2, and 3 via line circuits 4, 5, and 6.

The callback memory 10 stores subscriber information of a callback setter for each extension subscriber.

Next, the operation of this embodiment will be explained.

When extension subscriber 3 attempts to make an outgoing connection to extension subscriber 2 who is currently talking with extension subscriber 1, extension subscriber 3
hears the busy tone, and extension subscriber 3 sets up a callback for extension subscriber 2 by known means. At this time,
As shown in FIG. 2, the central control device 8 stores the extension subscriber who is the callback setter in the memory area corresponding to the extension subscriber 2 who is the callback setter in the callback menu 10. The subscriber information of party 3 is stored. next,
In order to cancel the callback service to extension subscriber 3, extension subscriber 2, who is free to terminate the call with extension subscriber 1, calls a predetermined special number requesting cancellation of the callback service. Upon dialing, the central tII device 8 searches the callback memory 1o. As a result of this search, the central control device 8 finds that the subscriber information of the extension subscriber 3 who is the callback setter is stored in the memory area corresponding to the extension subscriber 2 within the callback memory 1°. When detected, the subscriber information of the extension subscriber 3 is deleted from this memory area and the callback service is canceled.

When the automatic connection by callback is completed,
When the extension subscriber 3 performs an operation to cancel the callback service, the callback service is also canceled in the same way.

(Effects of the Invention) As explained above, in the present invention, when a callback setter dials a special number requesting cancellation of the callback service, the callback setter who dialed this number is stored in the callback memory. By deleting the subscriber information of the callback setter stored in the corresponding memory area from this memory area, even the callback setter can cancel the callback service and freely make outgoing connections. There is an effect that can be done.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an electronic exchange with a callback function of the present invention, and FIG. 2 is a callback memory 1.
0 is a configuration diagram of . 1.2.3... Extension subscriber, 4.5.6... Line circuit, 7... Call path switch, 8... Central control unit, 9... Main storage device, 10... -Callback memory. Patent Applicant To (Kidenki Engineering Co., Ltd. Acting Patent Attorney Susumu Hara 1st match, 12th move = Figure 2)

Claims (1)

[Scope of Claims] 1. In an electronic exchange with a callback function, there is provided a callback memory in which subscriber information of a callback setter is stored for each extension subscriber; Store subscriber information of the callback setter in a memory area corresponding to the extension subscriber who is the callback setter,
When the callback setter dials a special number requesting cancellation of the callback service, the callback memory is searched and the callback setter is stored in the memory area corresponding to the callback setter. 1. An electronic exchange with a callback function, characterized in that the electronic exchange has a control means for deleting the subscriber information of the callback setter from the memory area when the subscriber information of the callback setter is detected.