开放的Voip源代码，实现SIP协议，可用于Voip的开发。

信息产业部发布的关于SIP协议的技术规范，第一部分:第二部分:基于会话初始协议(SIP)的呼叫控制的应用-issued by the Ministry of Information Industry on the SIP protocol specification, Part I : Part II : Based on Session Initiation Protocol (SIP) Call Control Application

voip telephony asterisk chinese doc

解析cisco的skinny协议，根据信令自动保存udp语音包，实现cisco的VOIP系统监控。- Analyzes cisco the skinny agreement, the root according to what is believed makes automatically to preserve the udp pronunciation package, realizes the cisco VOIP system monitoring.

网络IP电话 V1.2 (源代码).rar-V1.2 IP telephone network (source code). Rar

voip电话语音信号编码，传输方式，大家顶！-voip telephone speech signal coding, transmission mode, the top U.S.!

Python 回声取消基于 Speex lib。使用ctypes speex 与工作

一个用VC写的电话会议的系统.能够在少于四人的情况下实现高质量的语音效果,用语言实现了语音的混频-It is a video conference software writted by VC++. It show the perfect performance even when 4 people talk at the same time. voice mixing technolog be used.

这是一个ip电话，可以帮助大家了解和学习ip软电话的做法啊-This is an ip phone, can help you understand and learn the practice of ah ip soft phone

著名的VOCAL的代理服务器，重定向服务器，和注册服务器-famous invisible to the proxy server, redirect servers, and server registration

3CX -VOIP软件客户端和服务器配置手册-3CX VOIP product client and server configure manual