| 摘要 |
PROBLEM TO BE SOLVED: To provide a presence management system by which an SIP client and a Web client can acquire the presence information of the client of an opposite server through the server of a present terminal side without using any protocol for the client application of the opposite server when the SIP server and the Web server are arranged on a network. SOLUTION: A communication channel to which a standard protocol which is being used between a Web server and the client is applied is formed between an SIP server and a Web server connected on a network, thereby acquiring the presence information of the SIP client and the presence information of a Web client mutually between the SIP server and the Web server through the communication channel. COPYRIGHT: (C)2005,JPO&NCIPI
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