晕，VoIP用来穿透NAT的一种方式，通过三个基本的NAT

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.

一个基于h.323协议，QT界面的网络视频(voip)工具-an agreement on h.323, QT interface of Network Video (1/1/2006) tool

这是最新的IETF有关P2PSIP的研究的文档，拿来给大家共享一下-This the latest IETF P2PSIP of the documents, used to share!

新手必看--VOIP培训资料之基础知识和技术演进篇-新手必看- VOIP training materials basis for the evolution of knowledge and technology articles

SIP协议资料。收集与SIP协议相关的资料。是不错的参考资料。-information of sip.

网络视音频系统主要功能就在于视音频的采集，网络传输两个方面，通过Video Capture系列API函数，你就可以轻松的搞定视频捕捉，但是对于视频的网络传输，则要费一番功夫了。-Network as the main functions of audio systems is that video and audio collection, two aspects of network transmission, through the Video Capture Series API function, you can easily get video capture, but for network video transmission, will cost some effort has been.

H.323规范的一部分，规定的信令部分的控制，是开发H.323不可缺少的文档。-part of the H.323 standard, signaling the part of the control, development of H.323 is an indispensable document.

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

活动语音检测，语音开发中的重要算法，尤其是在voip中广泛使用。该算法简单明了。-voice activity detection, voice development of the algorithm, especially in the widely used voip. The algorithm is simple and clear.

IP电话程序--IP phone program