| 摘要 |
PURPOSE:To provide a cordless telephone set which can prevent the sudden disconnection between the master end slave devices despite the occurrence of the radio noises or the radio break and never gives an unpleasant feeling to a subscriber of the counter side. CONSTITUTION:A level detecting part 11 detects that the radio signal drops down to a level where the communication is impossible between a master device 1 and a slave device 10 while the device 10 is talking with a counter subscriber through a telephone circuit 9 and the device 10. Under such conditions, the talking of the device 10 is held and a holding tone is sent to the counter subscriber through a holding tone circuit 12. Then the talking is started again by the device 10 when the telephone signal is reset at a communicatable level within a fixed time. |
