SIP supports five facets of establishing and terminating multimedia communications: user location, capabilities and availability, call setup and call handling.
SIP支持建立和终止多媒体通信的五个方面：用户定位、能力与可用性、通话建立和通话处理。
SIP supports five facets of establishing and terminating multimedia communications: user location, capabilities and availability, call setup and call handling.
SIP支持建立和终止多媒体通信的五个方面：用户定位、能力与可用性、通话建立和通话处理。
应用推荐