Visual communication server, visual communication program...

Details Visual communication server, visual communication program... Visual communication server, visual communication program...

H - Electricity

04

N

H04N 7/14 (2006.01) H04M 3/56 (2006.01) H04N 7/15 (2006.01)

Patent

CA 2538497

A VC server 1 has a call management unit 14 which detects a line connection state of telephone terminals based on an event signal received from an exchange 3 and registers the line connection state in a call information DB 11, a client information DB 10 in which telephone numbers of the telephone terminals and IDs of VC clients are stored in correspondence, a client connection information DB 12 in which session states between VC clients are stored, and a client session controller 15 which, when a change in line state between the telephone terminals is detected in the call information DB 11, refers to the client information DB 10, specifies a pair of corresponding VC clients, and instructs to establish or terminate a session between the VC clients according to the change in line state.

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