sip对sip的体系结构进行了分析，对初学sip的有很大的帮助。

H.323协议原理 ------VOIP网络基本构成单元-H.323 networks------ VOIP principle agreement constitutes the basic unit

这是一个用C++Builder开发的视频聊天程序，主要功能在于采集视频流-This is a C++ Builder development of video chat program, the main function is to capture video streaming

网络电话。采用GSM语音格式，2.2KB/s的数据流量，支持HTTP, Socks4/5单一代理或二者同时代理。本版本修复了以前版本的一些小问题，增加了动态调整延时，打开、关闭话筒和声音，保存和自动加载通话地址列表，代理服务器列表，使用全部或部分本机地址开机-telephone network. GSM voice format, 2.2KB/s data traffic, supports HTTP, Socks4/5 of a single agent or combination of both agents. This version fixes previous versions of some small problem, the dynamic adjustment of delay, opening, closing and microphone voice, preservation and automatically load calls address list, the proxy list, the use of all or part of the machine addresses boot

一个可以在PPC上运行的sip客户端的源代码,使用基于osip,exosip,ortp,mediastreamer的库-A PPC can be run on sip client source code, use-based osip, exosip, ortp, mediastreamer library

支持h323的视频电话服务端-support h323 video-phone service

遵循h323的视频会议系统代码password: sdcxwa.com-follow the video conferencing system code password : sdcxwa.com

Delphi写的IP电话源码-Delphi written source IP telephone

华为海思芯片的音频处理，包括采集声音，组包文，然后发送。-rpt send。

this sip voip source code too. i dont know why it does not work. please check and then send back to me. thanks -this is sip voip source code too. i dont know why it does not work. please check and then send back to me. thanks

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