| 摘要 |
PURPOSE:To allow a system to cope with the transfer by allowing an outgoing exchange station to return an interruption confirmation packet to an incoming exchange station and to send a call request packet for a transfer destination address to a transfer destination exchange station When an interruption request packet is received. CONSTITUTION:When the outgoing exchange station PS1 receives an interruption request packet CQ including a transfer destination address notice utility, the occurrence of incoming call transfer to a call request packet CR for a terminal equipment PTD1 is detected. An interruption confirmation packet CF is returned and no interruption is instructed to a terminal equipment PTS1. When a call comes from the terminal equipment PTS1, the packet CR is edited for a transmission destination address indicated by the transfer destination address notice utility of the packet CQ based on the information of the call request packet CR stored in the memory and re-calling is implemented. Then, the packet CR is sent to a transfer destination exchange station PS2. Thus, since the system copes with the transfer to an incoming call from other network and the transfer to the other network, the communication is implemented through a shortest relay route. |
