| 摘要 |
PURPOSE:To increase the reliability of the incoming call display even if the display of incoming call malfunctions at the mobile terminal unit and to make most use electromagnetic waves, by giving the function of incoming call display to the wired terminal unit. CONSTITUTION:The means 36 displaying incoming call at the opration of the 16 Hz detector 22 is provided with the wired terminal unit, and the period of operation of the transmitter 22 is controlled with the logic control circuit 30 and the delivery of electromagnetic waves is stopped at waiting. Further, the mobile terminal and wired terminal are respectively provided with the control signal detectors 19 and 35 stopping the control signals f1 and f2 oscillated by themselves, and the control signal by itself returned via the opposing unit can be detected by providing the path leading a part of the output of the reveiver 12 to the delivery signal switch 9 for the mobile terminal and by setting the path introducing a part of the output of the reveiver 23 to the delivery signal switch 27 for the wired terminal. |
