video conference introduce basic on h.323

CoolFace是基于jxta的P2P系统，其基本功能有：群聊，私聊，文件共享，视频等。性能目标参照腾讯QQ。-Coolface is jxta based p2p system，its basic functions included：public chat，private chat，file sharing，video conference, which is similar to OICQ.

高集成度与优化特性不仅能以仅为前代应用系统十分之一的成本实现同等的高性能，同时还确保了所需的高灵活性，以满足多会议单元(MCU)与视频安全监控等应用-High level of integration and optimization features not only the previous generation of only one-tenth of the cost of application system to achieve the same performance, while