| 摘要 |
PURPOSE:To attain an inexpensive system by allowing only a station by allowing only a mobile station in response to a call from a base station among mobile stations to hook off its handset and other stations to interrupt a speaker circuit after a prescribed time. CONSTITUTION:When a mobile station radio equipment 1 receives a call signal, a voltage is applied from a reception voltage terminal 6 to a timer circuit 2, which starts an operation. On the other hand, the received voice passes through a speaker control circuit 3 from a reception output terminal 7 and is outputted from a speaker 4 and a commanded call number is listened to from the speakers of all mobile stations. A hook switch 5 is operated by hooking off the handset in a mobile station corresponding to the call number and the timer circuit 2 is stopped. In the mobile stations other than the station, since no handset is handled, the hook switch 5 is not activated, the timer circuit 2 continuous the operation, the speaker control circuit 3 is interrupted after a time to interrupt the voice from a base station. Thus, no accessory is required to the base station side and the timing circuit has only to be added to the mobile station, then the individual calling is attained and the inexpensive system is constituted. |
