| 摘要 |
PURPOSE:To give convenience for the restart of a required talking by storing a recent talking connecting state to a connection destination memory and conducting talking connection according to the storage of the connection destination memory when a specific number is dialed so as to simplify the connection of re- talking and not to decrease the effect of the talking time limit service. CONSTITUTION:When a caller A and a called party B are in a talking state, its connecting state is written in the connection destination memory 4. When the caller A and the called party B are hooked on for the limit of talking time and the caller A desires the restart of the talking, the caller A hooks off. When this off-hook is detected by a subscriber circuit 1, it is informed to a control section 6, which connects the caller A to a dial register 8 via a switch network 2 so as to transmit a dial tone to the caller A. The caller A hearing the dial tone dials the specific number. When the dial register 8 detects the specific number, it is informed to the control section 6, which calls the connection destination memory 4 by using a subscriber terminal number of the caller A as an address so as to obtain a subscriber terminal number of the called party B and connect the caller A and the called party B into the talking state through a switch network 2 (connection shown in dotted lines) and a trunk 3. |
