JPH0350992A - Incoming controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to a private branch exchange (PBX) and a facsimile (FA)
The present invention relates to an incoming call control device which accommodates the X) and automatically allows an incoming call to be received by identifying whether an incoming call from a central office line is a facsimile call or a voice call.

2. Description of the Related Art Conventionally, this type of incoming call control device has been limited to facsimile incoming calls and voice incoming calls for each office line.

Problems to be Solved by the Invention However, if each office line is limited to facsimile reception and voice reception as in the conventional incoming call control device described above, there are problems such as inefficient use of the office line and relatively high operating costs. was there.

The present invention solves these conventional problems by identifying whether an incoming call from a central office line is a facsimile call or a voice call and controlling the incoming call. It is an object of the present invention to provide a call termination control device that can be shared, thereby improving the efficiency of using office lines and reducing operating costs.

Means for Solving the Problems In order to achieve the above object, the present invention includes an identification circuit in the central office line circuit for automatically answering an incoming central line call, and then discriminating between an incoming facsimile call and an incoming voice call; It is equipped with a destination table that allows you to set destinations for incoming facsimile calls and voice calls.

Therefore, according to the present invention, when a call arrives on the central office line, the call is automatically answered, and then connected to an identification circuit, which distinguishes between a facsimile incoming signal and a voice incoming signal, and based on this identification information. , the common control unit refers to the destinations of facsimile calls and voice calls registered in the destination table, and
A call can be automatically received on the destination terminal.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a call termination control device according to an embodiment of the present invention, FIG. 1 is a general block diagram of the entire system, and FIG. 2 is an explanatory diagram of a call destination table.

In Figure 1, 1 is a telephone, 2 is a facsimile (FA
X) Terminal, 3 is an extension trunk that controls the telephone 1 and facsimile terminal 2, 4 is a central office line trunk that controls the central office line, and an incoming call response circuit that automatically answers the central office line when a call is received from the central office line. 5, an identification circuit 6 for identifying whether an incoming call from the central office line is a facsimile call or a voice call;
A telephone call circuit 7 that forms a call path after the telephone 1 and the facsimile terminal 2 respond, and a trunk control section 8 that controls the incoming call response circuit 5, the call circuit 7, and the like are provided. Reference numeral 9 denotes a communication path, which selectively connects a plurality of extension trunks 3 and the office line trunk 4. Reference numeral 10 indicates a destination table, in which destinations for facsimile calls and voice calls can be set. Reference numeral 11 denotes a common control unit of the private branch exchange, which includes an extension trunk 3, a central office trunk 4, a communication path 9, and a destination table 10.
control etc.

As shown in FIG. 2, the destination table 10 includes trunk numbers rooIJ1. ．． ．． r 010 J, roll J
,..., enter "0" or "1" to indicate whether the call is a general call or a DIL call.
If the items to be determined are as follows, and the DIL incoming call is "1",
The destination of the call can be set individually for the voice telephone 1 and the facsimile terminal 2, such as "2°O" and r300J. Note that DIL incoming call refers to a function that connects directly to a predetermined terminal without going through a relay stand when an incoming call is received on a central office line.

The operation of the above configuration will be described below.

Now, if there is an incoming call from the central office line to the central office trunk 4 with trunk number r 010 j (see Figure 2), the trunk control unit 8 receives this incoming signal via the incoming call response circuit 5 of the central office trunk 4. It is detected and the common control unit 11 is notified of this. When the common control unit 11 receives this notification, it refers to the destination table 10, and as a result, the trunk number 010 is
It is found that the central office line trunk 4 is set to DIL, and an automatic response instruction is sent to the trunk control unit 8 of the central office line trunk 4. Upon receiving this instruction, the trunk control section 8 controls the incoming call response circuit 5 to automatically respond to the central office line, and also causes the incoming call signal to be sent to the identification circuit 6. The identification circuit 6 identifies whether the transmitted incoming signal is a facsimile-specific incoming signal or a voice incoming signal. When the identification circuit 6 detects an incoming facsimile signal, it notifies the trunk control unit 8 of the incoming facsimile signal. Based on this notification, the trunk control unit 8 determines that the incoming call is an incoming facsimile call, and on the other hand, when the identification circuit 6 does not send out a detection notification of a facsimile incoming signal within a certain period of time, it determines that the incoming call is an incoming voice call. In either case, the trunk control unit 8 tells the common control unit 11,
The result of determining whether the call is a voice call or a facsimile call is notified. Based on this sent information, the common control unit 11 refers to the destination table 10, and if it is a voice call, controls the extension trunk 3 to make the call arrive at the telephone 1 with extension number 200, and if it is a facsimile call, The extension trunk 3 is controlled to reach the facsimile terminal 2 having the extension number 300. When the telephone 1 or the facsimile terminal 2 responds, the extension trunk 3 detects this and notifies the common control unit 11 of the response. Based on this, the common control unit 11 controls the communication path 9 and the office line trunk 4, and connects the telephone 1 or facsimile terminal 2 to the office line via the communication path 9 and the communication circuit 7 of the office line trunk 4. I can do it.

In this way, according to the embodiment described above, it is possible to automatically determine whether an incoming call from a central office line is a voice call or a facsimile call, and then automatically allow the call to arrive at the destination terminal.

Effects of the Invention As described above, according to the present invention, when there is an incoming call on the central office line, after automatically answering the call, it is connected to an identification circuit, and this identification circuit distinguishes between an incoming facsimile signal and an incoming voice signal. Based on the information, the common control unit can refer to the destinations of facsimile and voice calls registered in the destination table and automatically receive the calls at the destination terminal.

Therefore, it can be used for both facsimile and voice calls, improving the efficiency of using the office line and reducing operating costs.

[Brief explanation of drawings]

FIGS. 1 and 2 show a call termination control device according to an embodiment of the present invention, FIG. 1 is a general block diagram of the entire system, and FIG. 2 is an explanatory diagram of a call destination table. ■...Telephone, 2...Facsimile terminal, 3...
Extension trunk, 4... Office line trunk, 5... Incoming call response circuit, 6... Identification circuit, 7... Call circuit, 8...
- Trunk control unit, 9... Call path, 10... Call destination table, 11... Common control unit.

Claims (1)

[Claims] The central office line trunk is equipped with an identification circuit that automatically answers an incoming central line call and then distinguishes between an incoming facsimile call and an incoming voice call, and the common control unit is equipped with a destination table that can set the destination for incoming facsimile and voice calls. An incoming call control device characterized by: