Provision for multiple host sessions using a multimedia communication session initiation protocol (SIP)

摘要

A system for conducting multimedia SIP sessions via multiple hosts, such as a PC and a telephone. Display data is transmitted to the session participant via the PC, and voice data is transmitted to the session participant via the telephone. An SIP split user agent proxy server receives an incoming SIP call from a calling client and transmits call signals associated with display data to the PC for allowing the PC to display documents, video, graphics, and/or text related to the call. Call signals associated with voice are transmitted to an SIP emulation client coupled to the telephone for allowing the telephone to engage in the voice communication.