JPH0354936A - Multiple address communication control system - Google Patents

Abstract

PURPOSE:To attain quick multiple address communication by previously knowing the communication procedure of multiple address communication opposite parties through a call control channel perior to the execution of the multiple address communication. CONSTITUTION:At the time of intending to execute the multiple address communication, a terminal 1a previously transfers data, i.e., SETUP command, to a terminal 1b. The terminal 1b detects an area displaying its own address, sets up its communication procedure in the detected area of a communication procedure area 5 by comparing its own communication procedure with that of an originating source and transfers the SETUP command data to a terminal 1c. Thus the data are successively transferred to respective terminals 1b to 1f, and when the final terminal 1f sets up its own communication procedure, the terminal 1f returns the data to the terminal 1a. The terminal 1a receiving the returned data executes the multiple address communication by using the communication procedures previously informed from respective terminals. Consequently, quick multiple address communication can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a broadcast communication control system, and more particularly to a broadcast communication control system for a communication terminal system using ISDN communication.

[Prior Art] Conventional facsimile machines follow specific communication procedures (for example, G3
．． G4) is used by being connected to a communication network (for example, a telephone network, a packet network, etc.). Therefore, even when performing broadcast communication, it is assumed that the same type of communication procedure is used and the same type of communication network is used.

[Problem to be solved by the invention] However, ISD is positioned as a comprehensive network.
In the N network, terminal devices using various communication procedures are connected, and when performing broadcast communication to them, it is necessary to quickly prepare different communication procedures, but conventional broadcast communication does not have this function. There was a problem in that the effect that it had was lost.

The present invention has been made in view of this problem, and is a broadcast communication system that enables prompt broadcast communication by knowing the communication procedure of the broadcast communication partner in advance using a call control channel when performing broadcast communication. The aim is to provide a communication control system.

[Means for Solving the Problems] and "Operations" The broadcast communication control system of the present invention that solves this problem has the following configuration.That is, broadcast communication control in a communication network using the ISDN communication system. In this method, the call control channel of the originator is loaded with the own terminal address and own communication procedure, and data containing the addresses of all destination terminals for broadcast communication is output, and each destination terminal receives the data. By comparing the communication procedure with the sender's communication procedure, it is possible to install its own communication procedure in its own area and pass it on to terminals with other addresses, and that the last terminal that received the data is equipped with its own communication procedure. later, returning the data to the source;
The transmitting terminal is characterized in that it analyzes the returned data and performs broadcast communication according to each terminal.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an example of a network in this embodiment.

In the figure, 1a to 1f are facsimile machines, and each
It is connected to the SDN network 2.

Now, the facsimile device 1a is the facsimile device 1b to 1
Consider the case where broadcast communication is performed on f.

FIG. 2 shows the data format included in the data portion of the SETUP command of the call control channel.

As shown in the figure, terminals 1b to 1, which are the destinations of the broadcast communication, start with terminal 1a, which is the sender and the destination to which this data is returned.
The data of f are lined up.

The internal data of each partner is as shown in FIG. Flag 3 is normally set to "O" and is set to "1" when each terminal checks it. In the address area 4, addresses of the terminals 1a to 1f are set. The communication procedure area 5 stores each terminal's communication procedure when it receives this data.

The operation is as follows.

First, when the terminal 1a performs broadcast communication, it passes data in the format shown in FIG. 2 in advance to the terminal 1b with a SETUP command.

The terminal 1b finds the area where its own address is displayed and sets the flag of the corresponding area to "1". Then, by comparing with the communication procedure of the sender, the own communication procedure (comparison result) is loaded in the communication procedure area 5,
Pass this SETUP command data to the terminal 1c.

In this way, the data is sequentially transmitted to each terminal, and when the last terminal 1f sets its own communication procedure, the data is returned to the terminal 1a.

In this way, the terminals 1a that have received the returned data perform broadcast communication, but the communication procedure at this time is carried out using what each terminal has notified in advance.

Here, the operation processing procedure of the originating terminal will be explained according to the flowchart of FIG. 4.

First, in step SL, a destination for broadcast communication is specified. Then, in step S2, the SETUP command data of FIG. 2 is created, with the address of the own terminal at the beginning and the address of the destination terminal following. Thereafter, in step S3, this SETUP command data is output to the ISDN network (D channel). In step S4, the SETUP command data sent from each partner terminal is received. Then, in step S5, the communication procedure of each destination terminal is learned by analyzing the data.

Thereafter, in step S6, broadcast communication is performed to each terminal using the communication procedure obtained as a result of the analysis.

The processing at the destination terminal is as shown in FIG. 4(b).

That is, enter the SETUP command (step S
IO), first select the flag that displays the own address “
1" to notify that it has been checked (step Sl
l). Thereafter, in step S12, the communication procedure of the own terminal is installed in the own area by comparing with the communication procedure of the originator, and in step S13, the SETUP command data is outputted to the next terminal.

As explained above, according to this embodiment, when communicating between terminals that have different communication procedures, especially when performing broadcast communication, it is possible to know the procedures of the communication partner in advance. Call setup or data creation for different communication procedures can be done quickly, and smooth broadcast communication is possible.

[Effects of the Invention] As explained above, according to the present invention, when performing broadcast communication, by knowing the communication procedure of the broadcast communication partner in advance using a call control channel, prompt broadcast communication is possible. become.

[Brief explanation of drawings]

Figure 1 is a network configuration diagram in this embodiment, Figure 2 is a diagram showing the format of SETUP command data, Figure 3 is a diagram showing details of the data in Figure 2, Figure 4 (a)
4 is a flowchart showing the operation processing procedure of the broadcast communication source, and FIG. 4(b) is a flowchart showing the operation processing procedure of the destination terminal. In the figure, la"-1f... facsimile device (terminal),
2: ISDN network, 3: flag, 4: address area, 4: communication procedure area. Figure 1 Figure 2 Figure 3 Figure 4 Prisoner (0)

Claims (1)

[Scope of Claims] In a broadcast communication control system in a communication network using the ISDN communication system, the call control channel of the originator is equipped with the own terminal address and own communication procedure, and the addresses of all destination terminals of the broadcast communication are loaded. When each destination terminal receives the data, it compares it with the communication procedure of the sender, carries its own communication procedure in its own area, and passes it to the terminal at another address. The last terminal that received the data must implement its own communication procedure and then return the data to the source, and the source terminal analyzes the returned data and broadcasts it according to each terminal. A broadcast communication control system characterized by communication.