SIP-based Police Video Conferencing System Application

The video network security system with reliable and comprehensive, should aim for high-speed video conference, integration, video monitoring data, coordination and various business.Public security system is a special system in the design of the system, so the user's fully consider the particularity and some video content of special requirements.In public security system based on the existing network from the network security, and future development direction and technology development trend of two respects to design,video conferencing system of public security.SIP Session (Initiation Protocal)called Session initialization protocol,it is by IETF(1999) organizations are Internet Engineering is proposed for the first time a based on IP network and Internet network real-time communication application environment of a kind of signaling protocol.In the next generation networks integration environment to provide business, hope to achieve various business integration, also is the business through the different network provides new signalling and control mechanisms to together, make it become a kind of new multimedia services in a seamless and smooth manner to client.This can be adopted for gathering, SIP can use a SIP of any IP network (wired LAN and WAN,public Internet,mobile 2.5g,3G and Wi-Fi) and any IP equipment (telephone, PDA,PC handheld devices),mobile users, so many new opportunities lucrative,improved the enterprises and users to communicate. Based on the application of SIP (e.g., multimedia conference and VOIP shall talk(buttons to--call),location services, online information and IM) even used alone,also for service providers, ISV, network equipment supplier provides many opportunities and developersBased on a video conferencing system based on SIP, SIP protocol for further research and application of video system in public.