| 摘要 |
PURPOSE:To surely connect an incoming call without need of manual intervention to a desired extension telephone set by connecting the incoming call from a line wire telephone set to call the extension number. CONSTITUTION:In making a call from a line wire telephone set 2, the call is connected at first to the voice output device 9, and an instruction representing the company name or the like being a recipient and the call of an extension number in the company is given in voice. The dial or pushbutton of the telephone set 2 according to the instruction is operated and the extension number is called, it is received by a microcomputer 12 to change over a switch circuit 5. As a result, the line wire telephone set 2 is connected to the extension telephone set automatically without manual intervention.
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