| 摘要 |
PROBLEM TO BE SOLVED: To provide a subscriber's circuit which can realize clip service in an exchange of the old type. SOLUTION: An analog subscriber circuit is provided with a ringer sending- out circuit 1 which is connected to lines A and B and sends out a ringer signal in response to a ringer sending-out request signal from a host device, a feeder circuit which feeds calling currents to the lines A and B, and a timer which starts timer operations upon detecting the sending-out termination of the ringer signal from the level change of the ringer sending-out request signal from the host device and ends the timer operations after a prescribed time elapses. The feeder circuit 2 feeds the calling currents to the lines A and B during the operation time.
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