| 摘要 |
PURPOSE:To call the next party without transfer operation by the initial calling party by sounding a voice guide after the termination of a call, receiving the extension number inputted by a PB dial and calling the extension. CONSTITUTION:When a call is terminated and an extension telephone set 11a is off-hooked to be restored, a common controller 15 restores a call path between a line wire trunk 14 and the extension telephone set 11a, connects a call path between the line wire trunk 14 and voice guide/number receiver 13 and activates said device 13. Receiving the guide through a voice from the voice guide/number receiver 13, a line wire is so indicated to dial the number of an opposite extension telephone set 11b. When the indicated line wire inputs the number of the extension telephone set 11b by a PB dial, the voice guide/ number receiver 13 receives the number, and the call path between the voice guide/number receivers 13 is restored by the common controller 15. After the voice guide/number receiver 13 is restored, the call path between the line wire trunk 14 and extension telephone set 11b is made reservation, and the extension telephone set 11b is called. |
