| With the rapid development of computer network and multimedia communication technology, more and more operators and manufacturers looked set to the video market of multi-service, it was more clear to make the concept of the next generation of video. In the market, the customer needs to build the two independent systems of the video conferencing system and the network monitoring and command system working with along. But there were some questions, such as poor interoperability, operational complexity, and limited scale. How to solve these questions, and how to achieve the network dispatcher, the visual field monitoring of production and the ease managing, and really achieve "straight to the scene, real-time interaction" effect. It was currently an important research topic in many video communications companies.In the thesis, based on the video monitoring system and multimedia conferencing system, combining the SIP and P2P, it is carried out to researching an integrated system. The main work of this thesis is:Firstly, after being reviewed the network monitor-commanding system and the video-conference system developing trends and system architecture, this thesis elaborated the background and meaning of integrated communication system.Secondly, based on analyzing the message format's feature of SIP and SDP, packet theory of RTP protocol, advantage of H.264 video encoder, this thesis focused on integration of P2P and SIP network architecture and signaling processes, discussed detail on the functional modules, functional organization, system structure, and practical application model of integrated video communication system.Finally, in the last part of thesis, the advantages and disadvantages of system's performance and network were assessed. As a word, this thesis made a good theory and technical preparation for the practical realization of integrated video communication system. |