| 摘要 |
PURPOSE:To reduce the amount of program development, and reduce the scale of a program and simplify control by controlling call processing control memory while separating the state of a service requesting person and states of other subscribers. CONSTITUTION:When a subscriber A originates, the system assigns the call processing control memory CCB and a service control part 12 starts the program of a proposer control part 14 once the subscriber A requests a conference service. The subscriber A when allowing a subscriber B to join in the conference sends a request to start a participant control part 15 from the control part 14 and assigns call processing control memory for controlling the subscriber B, and the control part 15 control the subscriber B. When a subscriber C is permitted to join, operation is performed similarly. Thus, the control part 15 operates on multiple basis for every paarticipant, so the efficiency of a static step is improved. |
