| 摘要 |
PURPOSE:To easily deal with a large scale system without being restricted by the number of input and output ports of a computer by providing a switching device controlling plural telephone terminals as the control means of the telephone terminals. CONSTITUTION:The input side of the switching device 6 is connected through the use of the communication control line of the computer 1. The output side has a circuit to which plural telephone terminal 8 can be connected, and the number of the telephone terminals 8 corresponding to a Japanese work station 7 are connected. The dial operation of the telephone set can automatically be dialled by the dialing instruction of the telephone number from the switching device 6. An autodialing 14 executes communication control with the switching device 6, and it connects and disconnects a telephone circuit based on a transmission instruction. By installing the switching device, an existing system can easily deal with a large scale system.
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