一个ip电话实例的实现，以vc为开发环境。

一个基于Openh323的视频会议终端，基于VC开发环境，可以与netmeeting互联。-It is a video meeting terminal based on Openh323 protocol, which developed with VC and can communicate with netmeeting.

一个用java实现的局域网语音聊天系统，包括服务器端和客户端，可以实现文字聊天，语音聊天，文件传输等功能，并实现了密码验证。-used to achieve a LAN voice chat system, including the server and client, can achieve a text chat, voice chat, file transfer and other functions, and to achieve a password verification.

H.323协议系列的一部分，用于会话的控制，开发H.323产品必须要懂H.225,这是2000年的版本，对应H.323 V4-H.323 part of the series for the conversational control, product development H.323 H.225 must understand that this is the 2000 version, corresponding H.323 V4

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

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基于sip的服务器程序，java编写，很不错的-Procedures based on the sip server, java prepared, very good

SIP Stacks dissipate2: C++ Linux, requries the qt-library, License: GPL Homepage: http://www.wirlab.net/kphone/ A enhanced dissipate, is part of the kphone distribution. -SIP Stacksdissipate2: C++ Linux, requries the qt-library, License: GPL Homepage: http://www.wirlab.net/kphone/ A enhanced dissipate, is part of the kphone distribution.

SKYPE SDK 简单演示说明例程，起到抛转引玉作用-SKYPE SDK simple demonstration that routines play a role in throwing quoted Jade

这是voip关守的程序源代码-This is voip gatekeeper of source code

可视电话的源代码,可以实现音频和视频的传播运用于voip网络-the source for visual phone.transimit sound with video via voip networks