JPS63122396A - Telephone system - Google Patents

Abstract

PURPOSE:To restore a communication terminal without a wasteful waiting time by executing a communication completing processing according to the kind of this communication terminal through an interface to which the communication terminal is connected. CONSTITUTION:A control part 11 supervises the communication completion to a communication terminal in communication and when the communication is completed, a release signal is applied to the control part 11. Therefore, the control part 11 retrieves a remote communication terminal communicating with the communication terminal from which the restoring signal is outputted from a memory table and when the communication terminal is not a telephone set, it does not transmit any signal to an extension circuit to which said communication terminal is connected but makes it silent. A private branch exchange detects this silence for a prescribed time, thereafter, enters a processing for restoring the communication terminals 2-1-2-n. Thereby, the communication terminals 2-1-2-n can be restored without the wasteful waiting time.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Field of Application) The present invention provides a system in which a plurality of interfaces are provided to be connected to a communication terminal, such as a private branch exchange, and two communication This invention relates to improvements to telephone systems that allow terminals to communicate.

(Prior art) In conventional private branch exchanges, voice communication terminals such as telephones and non-voice communication terminals such as computers and facsimile machines can be connected to the extension circuit.In this case, the telephone has a network control function. Non-voice communication terminals that can be connected directly from the network but do not have network control functions can make and receive calls in the same way as telephones.
It is connected via a network controller with a recovery sequence. By the way, in order for the network WJ device in communication to recover with a signal from the private branch exchange, it is necessary to enter a state in which no signal is given from the extension circuit - a silent state.

However, since conventional private branch exchanges were mainly configured with telephones that were overwhelmingly connected, if one of two communication terminals that were communicating with each other terminated communication, the other communication An audible sound signal was sent to the extension circuit to which the terminal was connected for a predetermined period of time. According to this, when one telephone during a call ends a call, an audible tone can be heard on the other telephone, indicating that the call has ended. However, in the case of a non-voice communication terminal, this is completely wasteful, and has the disadvantage that it is forced to wait for a predetermined period of time during which the audible sound signal is being transmitted without being able to recover.

(Problems to be Solved by the Invention) As described above, in the conventional telephone system, call termination processing is centered on the telephone, and an audible sound signal is not output for a predetermined period of time after the other party ends the call. There is a drawback that recovery cannot be performed because the data is sent to the user, resulting in unnecessary waiting time. The present invention was made in view of the shortcomings of the conventional telephone system, and its purpose is to provide a telephone system in which communication terminals connected via an interface can be restored without unnecessary waiting time. It is to provide.

[Structure of the Invention] (Means for Solving the Problems) In the present invention, when the end of communication is detected for one of two communication terminals communicating via an interface, the type of the other communication terminal is detected. The telephone system is equipped with processing means for performing communication termination processing via the interface to which the other communication terminal is connected.

(Operation) According to the above telephone system, when the end of communication is detected for one of the two communication terminals that are communicating, the communication end processing is performed depending on the type of the other communication terminal. Communication terminals can be restored without waiting time by receiving appropriate signals, etc.

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

FIG. 1 is a block diagram of a private branch exchange according to an embodiment of the present invention. In the figure, 1 indicates a switching circuit, and this switching circuit 1 includes extension circuits 5-1 to 5-n, 15-1 to 15.
-n, subscriber circuits 6-1 to 6-n5 dedicated line circuits 7-1 to
Connect and disconnect between 7 and n. Subscriber circuits 6-1 to 6-
n is connected to the central office exchange via central office lines 8-1 to 8-n,
The dedicated line circuits 7-1 to 7-n are connected to the dedicated lines 9-1 to 9-n. Extension circuits 5-1 to 5-n are connected to network control devices 4-1 to 4-n, which have the same calling/recovery sequence as telephones.
It is connected to communication terminals 2-1 to 2-n such as computers via 4-n1 modulation/demodulation circuits 3-1 to 3-n, and telephones 14-1 to 14-n are connected to extension circuits 15-1 to 15-n. n is connected. Reference numeral 11 denotes a control unit, which is composed of a microcomputer, and the control unit 11 is connected to the maintenance terminal 10.
Each section is controlled based on the data input from the dial receiving/transmitting section 13, the dial data obtained from the dial receiving/transmitting section 13, and the program in the storage section 12.

In this embodiment, since the control unit 11 operates as a processing means for performing communication termination processing, at the beginning each extension circuit 4
-1 to 4-n and 14-1 to 14-n are configured to receive data indicating what type of communication terminal is connected to them through input from the maintenance terminal 10. That is, when the operator inputs the type data of the communication terminals 2-1 to 2-n and the telephones 14-1 to 14-n from the maintenance terminal 10, the control unit 11 stores the data in the storage unit 12.
A memory table 201 as shown in FIG. 2 is created. In addition, the control unit 11 stores a comparison memory table of the identification numbers of the extension circuits to which the two communication terminals (including telephones) are connected, respectively, minus the extension number 11, as shown in FIG. 3. It is created in section 12. It monitors the end of communication for communication terminals in progress, and operates based on the program shown in the flowchart of FIG.

Communication terminals 2-1 to 2-n communicate with other communication terminals 2-1 to 2-n.
When communicating with n, and when terminating communication, CML
Turn off the signal. As a result, a recovery signal is given to the control unit 11 (301). Therefore, the control unit 11 searches the memory table shown in FIG. 3 for the other communication terminal that was communicating with the communication terminal to which the recovery signal was output.
2) Furthermore, the type data of the communication terminal is searched from the memory table 201 shown in FIG. 2 (303). The control unit 11 detects from the search result whether the type of the communication terminal is a telephone (304), and if it detects that the communication terminal is not a telephone, it does not send any signal to the extension circuit to which the communication terminal is connected. Make it silent (305). Further, when it is detected that the communication terminal is a telephone, an audible sound signal is transmitted for a predetermined period of time as in the conventional case (306).

Since the private branch exchange is configured in this way, the network controllers 4-1 to 4-n are immediately given silence when the other party ends the communication, and after detecting this silence for a predetermined period of time, The communication terminals 2-1 to 2-n can enter recovery processing, and the communication terminals 2-1 to 2-n can be recovered without unnecessary waiting time.

[Effects of the Invention] As explained above, according to the present invention, communication termination processing is performed according to the type of communication terminal via the interface to which the communication terminal is connected, so that the communication terminal does not waste time. Recovery can be performed without waiting time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, FIG.
The figure is a block diagram of a memory storing data used in an embodiment of the present invention, and FIG. 4 is a flowchart for explaining the operation of an embodiment of the present invention. 1... Exchange circuits 2-1 to 2-n... Communication terminals 5-1 to 5-n, 15-1 to 15-n... Extension circuit 1
1...Control unit 12...Storage unit 13...Dial receiving/transmitting unit 14-1 to 14-n...Telephone agent Patent attorney Nori Chika Ken Shu Kanshu Sanno - Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] Multiple interfaces are provided to connect to communication terminals,
In a telephone system where two communication terminals can communicate via the interface, when it is detected that communication has ended for one of the two communication terminals, this 1. A telephone system comprising processing means for performing communication termination processing via an interface to which the other communication terminal is connected.