| 摘要 |
PURPOSE:To control a recording device from a subscriber telephone set, by controlling reproducing and stop of recording by the special number dial of the telephone set and by releasing the recording device by a telephone loop. CONSTITUTION:First, the call comes to extension telephone set SUB and is connected through incoming trunk ICT and main trunk EX, and simultaneously, it is connected to recording device RECT also. Recording device RECT is controlled by the special number dial of the extension telephone set to reproduce and stop recording. In respect to release of the device, the relay is released by loop break due to extension telephone set receiver hook-on to release the main trunk normally. Consequently, since the recording device is connected at the incoming call time and is controlled by the dial of the subscriber after the call, recording of the call is not discriminated by the other party. |
