一个语音聊天程序是用VB写的，很好，不是用控件实现…

skype api application3

introduce to sip h323

H.264最新VC源码，非常实用，你可以稍加改动就能用在你的工程中-H.264 up-to-date source VC, very practical, you may be able to use a little change in your project

vc编写的sip代理服务器,无需其他的库，直接编译-vc prepared sip proxy server, no additional library is directly compiled

开放的Voip源代码，实现SIP协议，可用于Voip的开发。-open source code, achieving SIP can be used for Student Development.

本文主要研究了W-WAN中GPRS网络的移动视频传输问题。文中探讨了GPRS的网络结构、协议体系以及链路特性，从中我们看出： GPRS网络链路不仅具有一般无线链路数据传输中遇到的延迟大、误码率高等共性问题，而且具有移动通信系统采用蜂窝频率复用方式带来的小区切换， 以及由于通信中链路性能随着地理位置变换而变化造成的GPRS网络中不可避免的经常性遭遇的冗长时延和突变时延。 这使得目前GPRS网络中使用的传统TCP或UDP传输协议均不能适应GPRS自身的链路特性，也不能实现高效的分组传输。-This paper mainly studied the W-WAN in the GPRS network for mobile video transmission problems. The article discusses the GPRS network architecture, protocol architecture, as well as link characteristics, from which we can see: GPRS network link not only has the general wireless link data transmission delay encountered in large, common problems of higher bit error rate, and with mobile communications system uses a cellular frequency reuse methods brought about by cell switching, as well as the communication link performance with the location change and change is inevitable GPRS network, the recurrent encountered lengthy delay and delay mutation. This makes the current GPRS network using the traditional TCP or UDP transport protocol are una

语音聊天的程序，看看或许有帮助-voice chat procedures, it might be helpful to see

第四章代码，Mpeg4的编码与解码，G.721,G.723,G.728,G.729的代码实现-Chapter IV code, Mpeg4 encoding and decoding, G.721, G.723, G.728, G.729 code to achieve

8路实时视频会议系统,低成本高效率135493824-8-way real-time video conferencing systems, low-cost, high efficiency 135493824

这是我们教研室的是师兄课题，已经通过了验证，并且有产品实践过了这是控制端的-This is the Teaching and Research Section of older subjects had been passed validation and products over the practice which is controlled side of the