| 摘要 |
PURPOSE:To add economically various control functions to an incoming side by sending back a reception confirming signal to an outgoing side from the incoming side, when a sending code sent together with information by a batch sending- out system is received by the incoming side. CONSTITUTION:After called subscriber numbers B1-Bn are transmitted in a batch to an incoming side exchange B from an outgoing station A, a register signal ST is sent out as a sending code. When this register signal is received, the exchange station B starts repeating of the called subscriber numbers B1-Bn, but when there is no disengaged line in a junction line, the exchange B sends back a register signal BK2 for requesting to reroute to the outgoing station A. The outgoing station A which received it pauses sending out of a signal SS, and subsequently, the exchange B pauses sending out of the BK2. Also, the outgoing station A sends an actuating signal SEZ to other exchange D through other circuit. In such a way, the outgoing side can be controlled from the receiving side, and an economization of a switchboard increases. |
