H.323简要说明

UDP穿透程序，对于搞音视频会议类软件的网友可以参考参考学习-UDP-penetrating procedures, for engaging in Class audio and video meeting software users can refer to the reference study

osip，exosip，ortp...是在网络电话中使用非常广泛的几个开源库。这里是在VC7环境下已经编译好的lib文件和dll文件，在windows环境下可以直接使用，省却了重新编译的烦恼。-osip, exosip, ortp ... is the phone in the network is widely used in several open source libraries. Here is the VC7 environment has been compiled lib files and dll files in the windows environment, can be used directly without the need to re-compile troubles.

sjphone 比skype便宜，到其指点网站上注册会有5次试用，很好用-sjphone cheaper than skype, pointing to its Web site Registration will be 5 times the trial, a very good use

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

Java Secure RTP source code

一个语音通讯软件。-a voice communications software.

语音通信控件V3.6 集成G729A压缩算法，实时传输协议，支持一对一(点对点)，一对多（广播式），多对多（会议式）的实时通话，话音清晰流畅！适用于各种常见开发平台。-V3.6 integrated voice communication control G729A compression algorithm, real-time transport protocol to support one-on-one (point-to-point), one-to-many (broadcast), many-to-many (conference style) real-time calls, voice clear and smooth! Applicable to a variety of common development platform.

SDP2327，中文版，学习sipHello的同学可以参考一下-SDP2327

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。

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.