JPS627746B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a same-extension-recall warning system that reduces the burden of extension calls on an exchange.

FIG. 1 is a schematic diagram of a private telephone exchange system. Network 1 includes subscriber circuits 2a to 2n.
A plurality of extension terminals 3a to 3n are connected via the trunk circuits 4a to 4n, and the central office line is connected via the trunk circuits 4a to 4n.
It is also configured by connecting the operator console 5 of the same exchange.
Further, the network 1 is exchange-controlled by a central controller (cc) 6. This central control device 6 sends and receives control data to and from the extension terminals 3a to 3n via the subscriber circuits 2a to 2n, and also sends and receives control data to and from the stations via the trunk circuits 4a to 4n. It also sends and receives control data between the operation console 5 and the memory 7 to control the exchange operation of the network 1. As a result, line connections are established between the extension terminals 3a to 3n, as well as between the extension terminals 3a to 3n, the office line, and the console 5 via the network 1.

In such a system, when a call is received from a central office line, the central office line is first connected to the console 5 and a response is received from the switching operator. Thereafter, the operator temporarily puts the above-mentioned central office line on hold, calls the extension terminal 3a to 3n desired by the central office line, and calls the extension terminal 3a to 3n that the central office line desires.
n and the above-mentioned suspended office line are connected to complete the switching operation.

By the way, if an incoming call from a central office line specifies destination a and the corresponding extension terminal A is called, but it is informed that destination a is not present and is at location b, the operator should This time, extension terminal B will be called. However, if the caller cannot reach the other party A even by calling extension terminal B, the operator will have to call another extension terminal, and in the worst case, the caller will have to call multiple extension terminals repeatedly. May be called. This requires a considerable burden on the operator, who often has to call again an extension terminal that has already been confirmed to be absent, resulting in wasted switching operations.

The present invention has been made in consideration of the above circumstances, and its purpose is to warn the caller when the same extension is called again while the central office line is on hold, to prevent unnecessary extension calling operations, and to provide a warning to the operator. It is an object of the present invention to provide a same extension re-call warning system that can reduce the burden on users.

That is, the present invention sequentially stores information indicating the called extension when the operator puts the central office line on hold and calls an extension, and warns the operator when attempting to call the same extension as the stored extension. The above-mentioned purpose is easily and effectively achieved by preventing unnecessary extension calls from occurring.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 2 schematically shows the control unit 8 of the embodiment system provided in the memory 7, in which a held office line and an extension called corresponding to this office line are sequentially stored. It's summery. Further, the stored extension number information is displayed on the console 5, for example. In addition, this stored extension information is successively compared with the calling extension information that the operator inputs via the console 5, and when the two match, the operator is notified by a buzzer, flashing lamp, etc. Warnings are starting to be issued.

In this way, when calling extensions one after another while obtaining absence information for the station line that was put on hold, if you try to call the extension that was previously recognized as being absent, the information will be stored in response to the above extension call. When a match is detected with the extension information received, a re-call warning will be issued. Therefore, upon receiving this warning, the operator can cancel the extension call and notify the central office line that the other party's whereabouts are unknown. still,
Of course, it is possible to ignore the warning and call the extension again.

As described above, according to the present system, the operator can eliminate the work of writing down and memorizing the extension number from which the call was made, and the work load can be significantly reduced. Moreover, the desired purpose can be effectively achieved through simple control such as memorizing the extension that was called while on hold, sequentially comparing this with the extension that is currently being called, and issuing a warning when a call is made to the same extension. It is achievable and the effect is huge.

Note that although the explanation has been given here as giving a warning to the operator at the operation console 5 about re-calling the same extension, if the extension terminal has this function,
A similar warning may be issued to the extension terminal. Furthermore, the registered extension numbers may be displayed one after another, and the operator may call the extension while checking them. In short, the present invention can be implemented with various modifications without departing from the gist thereof.

As described in detail above, according to the present invention, it is possible to prevent the caller from re-calling an extension for which it has been confirmed that the called party is absent, and to give a warning to the caller. It can reduce the burden and has great practical advantages.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of the private telephone exchange system.
FIG. 2 is a diagram showing a storage model of a calling extension for explaining one embodiment of the present invention. 1...Network, 2a-2n...Subscriber circuit, 3a-3n...Extension terminal, 4a-4n...Trunk circuit, 5...Operation console, 6...Central control unit, 7...Memory, 8 ...control unit.

Claims (1)

[Claims] 1. When a call is placed on hold on a central office line or extension, a call is made to another extension, and at a private telephone exchange that connects the other extension with the above-mentioned office line or extension on hold, the call is made while the central office line or extension is on hold. A same extension call warning system is characterized in that extension information is sequentially stored, and when the same extension is called again by referring to the stored extension information, a warning is issued to the extension caller.