SIP-based multimedia conference system design and implementation

through the in-depth research of current multimedia conference system, this paper proposes a SIP-based multimedia conference system model for NGN network. This system mainly uses SIP application server to achieve conference call control, media server to achieve the mixed distribution of meeting member media streams, and the Web server is to provide the interaction interface between end-user and conference platform, to achieve the relative independence between the conference control and user interaction. Therefore, the system has high reliability, easy to expand.