SIP Stacks GNU eXosip: C Linux+Windows+... License: GPL Homepage: http://savannah.nongnu.org/projects/exosip/ The extensible osip: "...It aims to implement a simple high layer API to control the SIP for sessions establishements and common extensions. Once completed, this eXtended library should provide an API for call management, messaging and presence features.... Download the tar file from http://osip.atosc.org/download/exosip/. -SIP StacksGNU eXosip: C Linux+ Windows+ ... License: GPL Homepage: http://savannah.nongnu.org/projects/exosip/ The extensible osip:

netmeeting控件原程序-netmeeting original control procedures

Vovida Networks, Inc. 公司发布的sip协议的1.5.0版本。整个文件包包括SIP协议栈的实现，一套SIP用户代理（a set of SIP user agent(SIPset)）和一套 Back-to_back(B2b) 用户代理.-Vovida Networks, Inc.. The company issued a sip agreement version .5.0. The whole package, including the SIP protocol stack to achieve. a SIP user agent (a set of SIP user agent (SIPset)) and a set of Back-to_back (B2b) user agent.

一个很好的SIP协议栈,用标准C实现.大家学习吧.-A very good SIP protocol stack, using standard C realize. Everyone to learn it.

VOIP电话源程序-source VoIP telephone

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

linux的大大牛alan cox写的关于linux下视频编程的api函数介绍。linux下的视频编程必备文档-linux big cow alan cox writes about linux under the video frequency programming api function introduction. Under linux video frequency programming necessary documents

linphone是运行在linux下的一个不错的软电话，希望能给大家开发带来点帮助-Linphone is running on linux a good under the soft phone, hope that I can bring to help the U.S. to develop

SIP RFC协议标准,只可惜是 英文版的，可做参考-SIP RFC protocol standards, but unfortunately are in English, can refer to

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