JPH05268326A - Data terminal calling system for common line signal system - Google Patents

Abstract

PURPOSE:To prevent the bell of a telephone terminal from being rung in the case of call incoming and to unnecessitate labor for manually operating data terminal connection by automatically terminating a call to a data terminal when it is identified that the terminated call is a data communication request call. CONSTITUTION:A center terminal 5 transmits attribute data showing a call originating terminal and the terminal number of a data terminal 3 as a communication opposite through a line exchange 9 and modems 11 and 10 for signal propagation to a line exchange 8. The line exchange 8 identifies it from the received attribute data that the call is terminated to the data terminal 3, and a data terminal calling signal is transmitted from a terminal calling signal generator 12. A controller 6 with modem function detects this calling signal and automatically terminates the call from the center terminal 5 to the data terminal 3 without ringing the call bell of a telephone terminal 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a common terminal signaling method for reading data terminals, and more particularly to communication between data terminals in a network in which a telephone terminal and a data terminal are connected to the same line through a control device. In this case, the present invention relates to a reading method of a data terminal which automatically connects to the data terminal without ringing the bell of the telephone terminal and puts it in a communication state.

[0002]

2. Description of the Related Art Conventionally, in this type of calling system, since it is impossible to identify which one of a telephone terminal and a data terminal is called in an exchange, the telephone terminal and the data terminal are called at the same time, and the telephone terminal responds to the data communication. When a specific signal (for example, a specific single audible same wave number) was recognized, the responder manually connected to the data terminal side.

[0003]

In the conventional calling method described above, both the telephone terminal and the data terminal are called by the call signal of 16HZ. Therefore, the bell of the telephone terminal rings while calling the data terminal, However, there is a drawback in that the user must manually connect to the data terminal after answering at the telephone terminal.

An object of the present invention is to call a data terminal by a common line signaling system in which an incoming call for a data terminal connected to a telephone terminal on one line is automatically received by the data terminal without ringing the calling level of the telephone terminal. To provide a method.

[0005]

A common terminal signaling method for reading data terminals according to the present invention is a data terminal calling method in a network composed of a plurality of circuit exchanges. From the attribute data of the above, it is identified whether the incoming call is to a telephone terminal or a data terminal connected to one line through a control device having a modem function, and when the incoming call is to the data terminal, The circuit switching device for transmitting a calling signal and the control device for detecting the data terminal calling signal transmitted by the circuit switching device and receiving the incoming call from the outgoing data terminal to the data terminal, the outgoing data When a call is received from the terminal, the data terminal automatically receives the call without ringing the ringing level of the call terminal.

[0006]

The present invention will be described below with reference to the drawings. FIG. 1 is a network diagram showing an embodiment of the present invention. Line switches 8 and 9, control devices 6 and 7 with a modem function for automatically connecting to a telephone terminal or a data terminal by a call signal from the line exchange, and a terminal call signal generation that generates a specific single wave number that does not ring the telephone terminal Vessel 12,
13, signal carrier modems 10 and 11 for terminal attribute data and call information by common line signaling, and telephone terminals 1 and 2.
And the data terminals 3 and 4 and the center terminal 5.

From the center terminal 5 to the control device 6 with a modem function
The call of the data terminal 3 connected to is accommodated by the data terminal that calls the number of the data terminal of the other party who wants to call by the common line signaling method and the terminal attribute data that the calling data terminal is the center terminal 5. It is sent to the existing circuit switch 8. The circuit switch 8 identifies which of the telephone terminal or the data terminal is to be called based on the sent terminal attribute data, and sends the terminal call signal to the modem-equipped control device 6 to which the telephone terminal 1 and the data terminal 3 are connected. A call signal is sent from the generator 12. Upon receiving this terminal call signal, the modem function control device 6 calls the data terminal 3 and automatically connects to start communication.

[0008]

As described above, according to the present invention, the attribute data of the calling terminal is transmitted through the line switch by the common line signaling method, and the attribute data received by the incoming line switch is data communication. It identifies and sends a call signal for the data terminal, and the data terminal call signal is detected by the control device with modem function that connects the telephone terminal and the data terminal, and the data terminal automatically receives the call. There is no ringing at the ring level and no need for manual connection to the data terminal.

[Brief description of drawings]

FIG. 1 is a network diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1, 2 Telephone terminal 3, 4 Data terminal 5 Center terminal 6, 7 Control device with modem function 8, 9 Circuit switch 10, 11 Common line signaling system signal carrier modem 12, 13 Terminal call signal generator

Claims (1)

[Claims] 1. In a data terminal calling system in a network composed of a plurality of circuit switches, attribute data of a calling data terminal received by a common line signaling system is connected to one line via a control device having a modem function. The telephone terminal and the data terminal that have been called, and when the incoming call is for the data terminal, the circuit switch that sends a data terminal call signal, and the data terminal call that is sent by this circuit switch A signal is detected and the control device that receives an incoming call from the outgoing data terminal to the data terminal is provided, and the incoming data from the outgoing data terminal is automatically sent to the data terminal without ringing the ringing level of the calling terminal at the incoming call. A data terminal reading method based on a common line signaling method, which is characterized by receiving an incoming call.