JPS6430950U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an automatic forwarding system for incoming calls on a central office line according to the present invention. 1... Office line trunk, 2... Changeover switch circuit, 3
...control circuit, 4...timekeeping circuit, 6a, 6b...6n...
Voice control circuit, 7a, 7b...7n...extension telephone.

Claims (1)

[Claims for Utility Model Registration] (1) A central office line trunk circuit, a changeover switch circuit connected to the circuit, a line circuit connected to the switch circuit, and an audio control circuit connected to the line circuit. , a voice control signal for supplying an extension transfer control signal to the changeover switch circuit for controlling the transfer of the incoming call to a specific extension when there is an incoming call to the central office line, and for controlling the voice of the extension telephone; and a timing circuit connected to the control circuit, and the voice control circuit controls the ringing sound of the extension telephone according to the elapse of the arrival time of the incoming call. , after calling the extension for a predetermined period of time, the changeover switch circuit is controlled by the output control signal of the control circuit to automatically transfer the call to a predetermined specific extension. Call forwarding equipment. (2) The automatic forwarding device for incoming calls on a central office line as set forth in claim 1 of the utility model registration claim, wherein the voice control circuit is a circuit that controls the volume of an extension telephone. (3) The automatic forwarding device for incoming calls on a central office line according to claim 1, wherein the voice control circuit is a circuit for controlling the sound quality of an extension telephone.