Abstract: In a state where the first P2P connecting the caller and the callee and the second P2P path connecting the callee and the take-over person are established, when the callee receives a switching operation, AC information including identification information of the caller and the take-over person is transmitted to the WEB server. The WEB server transmits A-C meeting information indicating a meeting area for the calling terminal and the takeover terminal to wait in the signaling server to the called terminal which is the transmission source of the AC information. The destination node transmits the A-C meeting information to the two nodes using the first P2P path and the second P2P path.