| 摘要 |
PURPOSE:To change over automatically the mode from the presence mode into the automatic answering mode after a preset predetermined time, by releasing the automatic answering mode possible for recording a message and operating a timer simultaneously. CONSTITUTION:A timer circuit 11 is provided in relation with an automatic answering mode selecting switch 3 and a presence mode selecting switch 5. The timer circuit 11 decides the set time by selecting a time constant circuit 12 (120-126) by a time set switch 13, and the timer circuit 11 keeps the automatic answering mode when the switch 3 is operated and an automatic answering mode selecting signal is inputted to an input terminal (f) of a system controller 2. When the switch 5 is operated and a presence mode signal is inputted to an input terminal (g) of a controller 2, the timer circuit 11 starts the operation. After the set time of the time set switch 13, the automatic answering mode selecting signal is inputted to the input terminal (f) of the controller 2 to obtain the automatic answering mode. |
