one of the most classic SIP

SIP的开发包，非常好用-SIP development kits, very handy

简单的局域网中用的IP电话程序-A simple IP phone program which used in LAN network

一个功能全面的基于H323（视频会议系统协议）的网守-a fully functional based on H323 (Video Conference System agreement) Gatekeeper

如何成功的运用OPENH323 来开发商业的H.323 协议栈-how to successfully make use of OPENH323 to develop commercial H.323 protocol stack

nettalk,个人觉得非常不错的网络电话，集成视频，声音和文本聊天。提供源码，大家共同学习

网络视音频系统主要功能就在于视音频的采集，网络传输两个方面，通过Video Capture系列API函数，你就可以轻松的搞定视频捕捉，但是对于视频的网络传输，则要费一番功夫了。-Network as the main functions of audio systems is that video and audio collection, two aspects of network transmission, through the Video Capture Series API function, you can easily get video capture, but for network video transmission, will cost some effort has been.

一本学习中文协议阅读的手册，里面详细介绍了osip协议阅读的结构和使用方法，是一本不错的手册。

windows下的STUN服务器，已经测试通过，可以在windows下运行通过-windows under the STUN server, the test can be run through windows

H.323简要说明-A brief description of H.323

使用eXosip开发的例子，使用vc打开工程直接编译库和例子，注意需要安装了xp平台开发包-use eXosip development example, the use of open vc works directly translated libraries and examples, the need to install the Platform Development Kit xp