| 摘要 |
PURPOSE: An SIP message transmitting method is provided to use radio resource of an IMS (IP Multimedia Subsystem) network efficiently by reducing a size of an SIP message. CONSTITUTION: An originating terminal transmits an SIP(Session Initiation Protocol) message to a P- CSCF(Proxy-Call Session Control Function) of the originating side(102). An S- CSCF(Service-Call Session Control Function) server transmits the SIP message to an AS(Additional Service) server of the originating side(106). The S-CSCF server transmits the SIP message to an AS server of the receiving side(110). The S-CSCF server transmits the SIP message to a P-CSCF of the receiving side(114). The P-CSCF of the receiving side transmits the final SIP message to a receiving terminal(116). |
