| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a SIP server capable of realizing reducing the management load, and to provide a VoIP phone system. <P>SOLUTION: The SIP server 10 for managing call control applied to VoIP calls among a plurality of VoIP phone terminals, while carrying out call control between a set of the VoIP phone terminals A, B and provided with a session timer for managing a session time between the VoIP phone terminals during a call that the session management time of the session timer is changed, in response to the number of call control times applied to the VoIP calls among the VoIP phone terminals. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
