JPS6041897A - Extension representation system - Google Patents

Abstract

PURPOSE:To call one of extension telephones in an assemblage selecting in previously registered order by giving assemblage of extension telephones group number different from extension number of these extension telephones, and dialing the group number. CONSTITUTION:When a caller A does not desire connection to a specified extension telephone B and termination at one of extension telephones 2000-2006 will do, the dials group number ''30''. An originating register 2 receives, counts and accumulates the selection signal, and informs to a central control equipment (CC) 4. The CC4 discriminates that the dialed selection signal is group number, and selects a non-service telephone, for instance 2002, from telephone numbers 2000-2006 stored in a memory (MEM) 5 and sets a channel. Order of searching for non-service telephone is stored beforehand in the memory in the order of direction of searching, for instance, direction (a) and direction (b).

Description

[Detailed description of the invention] The present invention relates to an extension representative system for a private branch exchange.

Generally, in the extension representative system of a private branch exchange, as illustrated in FIG. 1, a plurality of extension telephones 10 to 14 are grouped into one set, and the telephone number of one of these telephones, for example, telephone 10, is set as the representative number of the set. , if the telephone 10 of this representative number is busy when dialing this representative number,
Predetermined priority order, e.g. telephone 10→11
→12→13→14 The pilot method searches for non-calling telephones and sends out a calling signal in the order of 12→13→14.
When dialing one of the extension numbers, for example, the number of telephone 22, for a set of extension telephones 20 to 24, if this telephone 22 is in a call, it is dialed in a predetermined order, for example, telephones 22 → 23 → 24 (in the figure). There is a switchback method, etc., in which a telephone that is not making a call is searched for in the order of input direction) → 21 → 20 (direction B in the figure). However, in the conventional extension representative system described above, if the extension number is the same as the main extension number, or if the desired telephone is busy, the call is automatically received on another telephone. It is not possible to determine whether the telephone is connected to the desired telephone or another telephone, and therefore it is inconvenient to know which telephone received the call only after the call is made.Also, because there are many extension telephones, the digits of the number cannot be determined. (1-1), there was an inconvenience in that it was easy to dial the wrong number.Furthermore, in the conventional extension representative system, priority was set for extension telephones, so calls were received biased to a specific telephone. However, there is a disadvantage that the called party of the telephone is required to answer the call.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional drawbacks, it is an object of the present invention to provide an extension representative system that allows a call to be made to a set of extension telephones, and also allows a call to be made by specifying a specific extension telephone of the set. It's about doing.

The extension representative system according to the present invention assigns a group number different from the extension number of the extension telephone to a set of domestic telephones, and dials the group number to pre-register one of the extension telephones in the set. The feature is that it can be selected and called.

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

FIG. 3 is a configuration diagram of a private branch exchange according to the present invention, and FIG.
The figure is an explanatory diagram of extension numbers stored in the storage device 5 of FIG. 3.

In Figure 3'', A and B are extension telephones, 1 is a switch network (NW), 2 is an outgoing register (ORT),
3 is the internal trunk (IOT), 4 is the central control unit (C
C), s is a storage device (MEM), and in FIG. has been done.

In the above configuration, when a caller takes extension telephone A off-hook, central control unit 4 detects this off-hook signal and connects extension telephone A and call register 2 via one-switch network 1, and connects extension telephone A to extension telephone A. will send out a dial tone. Next, when the calling party dials the extension number 2001 of the desired called party, for example, B, the calling register 2 receives, counts, and stores this selection signal (dial pulse or F B signal), and sends it to the central control unit. 4 sets a communication path to the extension telephone B of the called party, that is, telephone A--switch network 1--internal trunk 3--switch network 1--telephone B based on the stored selection tIb number. Since this is a conventional exchange process for mutual extension calls, it will not be described in detail here.

If the caller does not desire a specific extension telephone B, that is, if the caller may receive the call on any of telephones 2000 to 2006, the caller dials group number 1301. At this time, the transmission register 2 receives, counts, and accumulates this selection signal and notifies the central controller 41C.The central controller 4 identifies that this dialed selection signal is a group number and stores it in the storage device 5. Memorized phone numbers 2000~
From 2006, a non-calling telephone, for example 2002, is selected and the communication path, ie, extension telephone A - switch network 1 - local trunk 3 - switch network 1 - extension telephone 2002 is set.

As shown in FIG. 4, the search order for non-calling extension telephones in the above group is, for example, extension telephones 2000→200.
6 (direction a) or extension telephone 2006→200 Q
It is sufficient to store them in the storage device 5 in the order of (b direction). By providing an allotter circuit or the like in the storage device 5, for example, when a call is first received at the extension telephone 2000, the next call will be sent to the extension telephone 2001 (if a call is in progress,
02), and if the call is first received on the extension telephone 2003, it is possible to shift the next call by having the call arrive on the extension telephone 2004 when making the next call.
It is possible to prevent incoming calls from being concentrated on a specific telephone extension.

As explained above, according to the present invention, it is possible to determine whether the caller has been connected to a desired telephone, or whether there is a possibility of being connected to another telephone, based on the dialed number; A group number can be set for each department of a company, etc., and can be made into a simple number that is easy to remember, thereby preventing mistaken calls. Further, according to the present invention, it is possible to prevent incoming calls from concentrating on a specific telephone in the set and the called party of that telephone being forced to answer the call.

An explanatory diagram of a certain pilot type and switch pack type.

FIG. 3 is a configuration diagram of an embodiment of the present invention, and FIG. 4 is an explanatory diagram of FIG. 3.

10-14.20-24.2000-2011. A.

B...Extension telephone, 5...Storage device,
30, 31...A collection (group) of extension telephones.

Claims (1)

[Claims] An extension representative characterized in that an extension number of the extension telephone is assigned to the condition of the internal dispute telephone, and by dialing a group number, one of the extension telephones in the group is selected and called in a pre-registered order. method.