srtp,一个RTP开源库，内含已经用VC7编译好的工程文件.

OReilly - Practical VoIP Using VOCAL.doc-OReilly- Practical VoIP Using VOCAL.doc

经典的带内音频dtmf产生和检测的c语言源码，检测准确率相当高-classic band audio DTMF generation and detection of c-source language, detection accuracy rate is very high

Linux下开发的一款网络电话-Linux built a network phone

sjphone 比skype便宜，到其指点网站上注册会有5次试用，很好用-sjphone cheaper than skype, pointing to its Web site Registration will be 5 times the trial, a very good use

支持gnu/linux和windows等平台的语音编解码源代码。-Support for gnu/linux and windows platforms, such as voice codec source code.

一个即时聊天软件的源代码，含服务器端和客户端。-A real-time chat software source code, including server-side and client.

点对点语音通信控件V3.6，集成了G729A压缩算法，实时传输协议，话音清晰流畅！使用简单方便！适用于VC＋＋、VB、 dot NET平台、C++Builder、Delphi、易语言及网页应用程序等常见开发平台。-Point-to-point voice communication control V3.6, integrated G729A compression algorithm, Real-time Transport Protocol, voice clear and smooth! The use of simple and convenient! Apply to VC , VB, dot NET platform, C++ Builder, Delphi, easy language and procedures, and other common web application development platform.

H323协议的Windows实现，开源代码，可直接使用。-Windows realize H323 protocol, open source code, can be used directly.

RealNetworks公司的Helix 的客户方部分源码．-RealNetworks Helix client part of the source code.