SIP RFC协议标准,只可惜是 英文版的，可做参考

OSIP.PDF

IP电视电话会议+VC源码，非常好的IP电话会议的学习代码-IP video and telephone conference on+ VC source, very good IP telephone conference learning code

一个不错的实时通讯开发开源代码，可用于ip电话/视频会议，希望对大家有用，-A good real-time communication to develop open-source code, can be used for ip phone/video conferencing, in the hope that useful to everybody,

symbian平台下的基于SIP的简单游戏，可以方便地扩展成VoIP通话。-symbian platform simple SIP-based games, can be easily extended into a VoIP call.

该视频会议源代码,实现功能强大,比传统视频会议算法更优,减少带宽-The video-conferencing source code, to achieve powerful, than the traditional video conferencing better algorithm to reduce the bandwidth

目前网络上面skype很流行,这是一篇详细的分析skype的文章,如果你想研究p2p的电话,那么值得一看-network above skype currently very popular, which is a detailed analysis of skype the article, if you want to research peer-to-peer phone, an eye-catcher

电子白板实现，java实现，欢迎指正，-Whiteboard realize, java realize, please correct me,

c++的voip应用源码，很简单的一个例子-c++ the voip application source code, a very simple example

oSIP开发者手册-oSIP Development Manual

本程序通过RTC(实时传输协议)实现了一个视频会议系统.-This procedure adopted by RTC (Real-time Transport Protocol) to achieve a video conferencing system.