| 摘要 |
PURPOSE:To improve the service for the user by providing a remote control signal detecting circuit and a dial signal change circuit or the like to change the telephone number to be transferred by remote control. CONSTITUTION:The incoming call from a telephone line 1 is terminated by a telephone circuit 22 of an incoming call transfer device, a telephone line 5 making a call is terminated by a telephone circuit 4 and a channel coupling circuit 3 couples both lines in terms of AC when the circuits 22, 4 are in communicating state. Further, a call signal from the circuit 22 is detected by a call signal detecting circuit 28 and after the call signal is detected, a remote control signal incoming from the line 1 is detected by a remote control signal detecting circuit 10. The notice of detection of the call signal from the circuit 28 is applied to an automatic dial circuit 29, the remote control signal detected by the circuit 10 is applied to a dial number change circuit 11, which changes a dial number set in advance to the dial circuit 29. The telephone number to be transferred is changed by remote control, allowing to improve the service. |
