this document illstrate HOW TO build a android develop envirounment.The android...

跨平台（Linux，Windows）的开源SIP服务器端-Cross-platform (Linux, Windows) open-source SIP server-side

windows 下 一个很好用的VOIp 网守源码~~不错的-windows used in the next one very good source VOIp Gatekeeper ~ ~ good

HELIX　的filesystem.rar部分-verified our part of the filesystem.rar

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

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

网络电话设置工具-telephone network configuration tool

sip开源协议 -sip protocol sip open source open-source agreement

sip对sip的体系结构进行了分析，对初学sip的有很大的帮助。-sip to sip architecture analysis for beginner sip of great help.

一个H323动态库使用的例子-a dynamic example of the use of

openh323源码，网络音视频通讯-openh323 source, audio and video communications network