程序源码 很通用的！！可以借鉴

远程视频监控系统最新程序代码，本程序可以在Windows 98/2000/XP/2003平台下运行，可在VC6.0或.NET中调试。调试前需要安装Microsoft DirectX 9.0。-It s the source code of remote video monitor control system. run on windows 98/2000/XP/2003. can be debug under vc++6.0 or .NET. and need Microsoft DirectX be installed.

著名的VOCAL的代理服务器，重定向服务器，和注册服务器-famous invisible to the proxy server, redirect servers, and server registration

这是一个视频会议系统中发送端有关mpeg-4播放技术的一个源代码-This is a video conferencing system transmitter on MPEG-4 broadcast of a source code

这是voip网关h.323到gateway的程序代码-This is voip gateway H.323 gateway to the code

oSIP开发者手册-oSIP Development Manual

SIP协议栈开发（siptiger）

Trabas VoIP Billing - A browser-based Open Source Software for VoIPOperator to handle billing process from Service & Tariff Definitionto Report Producing.-Trabas VoIP Billing- A browser-based Open Source Software for VoIPOperator to handle billing process from Service & Tariff Definitionto Report Producing.

SIP协议实现的软电话功能例子(仅供参考)-SIP protocol implementation example of the soft phone functionality (for reference only)

a SIP proxy server and service provider

关于IP电话的文章-The article on the IP phone