| 摘要 |
PURPOSE:To call entire group members, or to extract and call an arbitrary group member, according to the judgement of a caller. CONSTITUTION:A group calling subscriber has a group table in which the group members are registered, and when the caller calls the group calling subscriber by a PB push button telephone set 1 based on a message guidance from an announcement device 9, the simultaneous calling is operated to the group members. And also, the caller extracts and calls the specific group member. |
