ORIGINATING CALL CONTROL SYSTEM BY SUBSCRIBER

PURPOSE:To enable to perform originating call control equally to all subscribers by equipping a discriminative memory of subscriber in priority in channel system control device corresponding to a circuit, and an originating call control circuit shifting a group of subscribers subject to the originating control every fixed time. CONSTITUTION:In case that detection of a change is recognized by each memory contents and the newest circuit scan information, a circuit scan information change detection circuit 5 loads a change information adding subscriber accommodating position information to a change detection queue 9 to transmit to a call processing system device 10. A originating call control circuit 11 receives it to decide which group is to be controlled among groups of subscribers divided into four by terminal accommodating position. A originating call control signal is given to the circuit scan information change detection circuit 5 during the circuit scan process timing of a group of subscribers subjected to the originating control to stop a calling of all subscribers in no priority belonging to the group applicable. For example, a group of subscribers subjected to the originating call control are changed every 10min so that the originating call control can be made against all subscribers excepting the subscribers in priority optionally designatable.