SIP协议实现的软电话功能例子(仅供参考)

音视频通信，利用mpeg压缩，运用网络传输协议传输-Audio and video communications, the use of mpeg compression, the use of network transmission protocol transmission

《ｖｃ视频会议开发技术与实例》第三章代码，H.263编码&解码　和H.264编码&解码-"vc video conferencing technology and the development of examples" of the third chapter code, H.263 coding

voip 语音编码方式一种G.729源代码，相关算法可以提供研究。-voip voice encoding a G.729 source code, related algorithms can provide research.

eXosip is a GPL library that extend the capability of the oSIP library. It aims to implement a simple high layer API to control the SIP for sessions establishements and common extensions.

一个不错的实时通讯开发开源代码，可用于ip电话/视频会议，希望对大家有用，-A good real-time communication to develop open-source code, can be used for ip phone/video conferencing, in the hope that useful to everybody,

H323到PSTN的网关 -Gateway from H323 to PSTN

目前网络上面skype很流行,这是一篇详细的分析skype的文章,如果你想研究p2p的电话,那么值得一看-network above skype currently very popular, which is a detailed analysis of skype the article, if you want to research peer-to-peer phone, an eye-catcher

详细介绍了由（RTC）API创建的音视频会议、共享应用程序、点对点对话和视频聊天优化向导界面。

本程序自带反向回传语音代理服务，可以使两个不同局域网内的客户机通过国际互连网进行语音通讯，本程序使用点对点方式，不通过任何中介服务器速度快，语音延迟极小，声音清晰逼真，其效果和真实IP电话不相上下，程序界面简洁，操作简单，是在互连网上打IP电话的极好工具，唯一的要求是通话双方都要有电脑，并连入互连网。 本程序能实现以下连网操作功能： 1.通话双方是同一局域网内的用户 2.通话双方是不同局域网内的用户，并通过各自的网关连入互连网 3.通话双方一个直接连入互连网，另一个处在局域网中，并通过网关连入互连网 4.通话双方直接连入互连网 一般的语音聊天软件只能实现1，4两种连网功能，而本程序能完全支持所有这四种连网情况，因而能使所有用户享受到语音聊天所带来的好处.-reverse the procedure own voice back-agency service, can make two different LAN client through the Internet for voice communications, point-to-point use of this procedure, not through any intermediary server speed, voice minimal delay, loud realistic, and the real effect of IP phone lines, procedural interface simple, simple operation, the interconnection of the IP phone online playing an excellent instrument, the only requirement is to call both sides have to have a computer, and connect to the Internet. This program can achieve the following networking feature : 1. Both the caller is within the same LAN users. Both the caller is different us

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