clients use NetMeeting, The server can use mfc.exe fairly good results

一个ＭＳ的语音聊天程序，是用ＶＢ写的，很不错，不是用控件实现的，不过不是实时语音，有点像对讲机-a voice chat program is written in VB, very good, not with the controls to achieve, but it is not real-time voice, a bit like a walkie-talkie

CS多客户端聊天工具 V1.0 可以多人在线聊天。经测试可以三十人以上，更多未测。

vovada公司根据sip协议开发的关于voip通话的协议栈的源代码sip-1.3.0版-vovada companies under the development agreement sip voip calls on the protocol stack source code sip-version 1.3.0

音视频聊天演示程序。聊天双方一个作为服务器，一个作为客户机。客户 机呼叫服务器建立连接之后，即可进行音视频聊天――双方都可以看到对方的图像， 可以听到对方的声音。 要求的系统配置：USB摄像头或数码摄像机，声卡，麦克风等。-Audio and video chat demo. Both sides as a chat server as a client. Client calls the server after establishing a connection, you can conduct audio and video chat- both sides can see each other

系列工具的提供 这行的一定要看！-series of tools that provide a look at the OK!

这是h.323交互话音应答代码-interactive voice response code

Siproxd is a proxy/masquerading daemon for the SIP protocol. It allows SIP clients (like kphone, linphone) to work behind an IP masquerading firewall or router.

一个不错的视频传输系统,实现了视频的采集与传输.

一个外国牛人用C++写的实时传输协议RTP,源代码的编写风格很好，可读性很强。可以用于网络视频和音频的传输，enjoy it- A foreign Niu Ren real-time transmission agreement RTP which writes with C, the source code compilation style very good, the readability is very strong. May use in the network video frequency and the audio frequency transmission, enjoy it

IP电话源码供大家共享,希望也能共享到其他源码-source for IP phones share the hope that can be shared to other FOSS