Research Of SIP Network Video Conference System Based On Softswitch

With the development of multimedia technology and communication technology by network, the business of multimedia communication has become a leading element in internet applications. Depending on its simple, flexible, opening and extendable, SIP has become the focus of the industry. The paper analyzes the abroad and domestic development situation of the video conference, studies the signal control protocol-SIP and applies SIP to real-time video conference system. SIP can build, hold and stop the session. To negotiate the media arguments with the other, SDP that stands for Session Description Protocol is used. The system uses the Sun's Java Media Frame to gather and play the voice and video data that is divided and merged to be transported in network. To ensure the voice and video transported instantly, the system will use RTP.