晕，VoIP用来穿透NAT的一种方式，通过三个基本的NAT

该程序可以用于两个人在LAN/Intranet(或者Internet)上进行视频会议。现在有许多视频会议程序，每个都有各自的性能提升技术。主要的问题是视频会议视频帧的尺寸对于传输来说太大。因此，性能依赖于对帧的编解码。 -the two procedures can be used in LAN/Intranet (or the Internet) for video conferencing. Now there are many video conference proceedings, each have their own performance enhancements. The main problem is video conferencing video frame size too large for transmission. Therefore, the performance depends on the right frame codec.

MPVC VC下写的RTC程序 可以进行语音和视频-MPVC VC under the RTC program can be written for voice and video

C++6.0实现语音采集与播放的控件。souce code 中为该程序的源代码 由于编写该控件的过程中用到了Directx8.1 所以需要安装 Directx8.1sdk 在路径中加入所需的lib exe 中的 ocx 用之前需要用regsvr32 进行注册 如果机器安装的Directx版本低与8.1的话不能运行 该控件没有对语音包压缩 所以对网络环境要求比较高 该控件在校园内经过性能测试-C 6.0 Acquisition and voice broadcast controls. China souce code for the program"s source code because of the preparation of the controls used in the process of Directx8.1 Directx8.1sdk therefore need to install the path to join the lib exe randomly with the use regsvr32 required before registration if machines installed DirectX version 8.1 with low so can not run the Controls no compression of voice packets so the network environment to the high demand on the campus of control after performance testing

Java Secure RTP source code

不错的网络ip电话程序（源程序）-good ip telephone network (source)

vb.net Chat Peer resource-vb.net resource Peer Chat

ffmpeg-0.4.6.tar.gz

学习SIP(Session Initiation Protocol)协议的最佳文档。-learning SIP (Session Initiation Protocol) the best documentation.

RFC文档中有关SIP协议的，3261，3264，3428，3265，2327，2543，大部分都是中文的，还有中华人民共和国通信行业标准中有关SIP的标准。-RFC documentation of the SIP, 3261,3264,3428,3265,2327. 2,543, most of whom are Chinese, there is the People"s Republic of China telecommunications industry standards on the SIP standard.

VOIP(H323)源码，实现了G723.1 G729 G728 G711等音频算法，可以和NetMeeting互通-VoIP (H323) source, Implementation of G723.1 G729 G728 G711 audio algorithms, etc., NetMeeting and can exchange