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...

需要的可以用到 ！专业性强！-needs can be used! Professional strong!

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

实现文字群聊以及点对点的视频聊天功能，自己编写-Realize the text of a group chat, as well as point-to-point video chat feature, I have written

openh323 source code

g7系列音频的编解码代码，可以帮助大家在voip中使用-g7 series of audio codec code, can help you in the use of voip

视频会议的代码，C/C++源码，通信图像传输类。-Video conferencing code, C/C++ Source, communication, image transmission category.

基于h323的网守管理程序，可以与现在流行的基于H323的VOIP系统很好的结合起来应用，-based on the Gatekeeper management procedures, and based on the now popular H323 VOIP systems combine good applications,

* How to use the programming framework and classes available in Windows Mobile and Smartphone SDK * The fundamentals of .NET Compact Framework 2.0 * Techniques for developing your own robust Smartphone applications * Steps for customizing components and P/Invoke * How to enhance data and communication security * Ways to improve the performance of your applications * Fundamental techniques for supporting world-ready applications - * How to use the programming framework and classes available in Windows Mobile and Smartphone SDK * The fundamentals of .NET Compact Framework 2.0 * Techniques for developing your own robust Smartphone applications * Steps for customizing components and P/Invoke * How to enhance data and communication security * Ways to improve the performance of your applications * Fundamental techniques for supporting world-ready applications

gnugk-2.2.2 c实现的GateKeeper 实现IP电话网守功能。-GNUgk- 2.2.2 c achieve GateKeeper IP telephone gatekeeper function.

视频会议系统,进行网络视频会议的源代码，应该很详细了，数据源可能得进行改动一下-video conferencing systems, video conferencing network for the source code should be very detailed, data source may need to engage you change