IP电话会议系统，支持多人会议，分为Clien和Server两部分，并附有UML设计....

voip实现的原代码的一个部分 sip协议的实现-voip realize the original code a part of the agreement realize sip

权威的skype协议分析，详细分析skype的网络结构、防火墙穿越方法、编解码等实现细节。-authority of the agreement, skype detailed analysis of the network structure, through the firewall, such as codecs achieve details.

这是h.323协议呼叫发生器代码-agreement calls code generator

一个用VC写的电话会议的系统.能够在少于四人的情况下实现高质量的语音效果,用语言实现了语音的混频-It is a video conference software writted by VC++. It show the perfect performance even when 4 people talk at the same time. voice mixing technolog be used.

此软件可以很顺利的实现网络对话，这样对网络编程的初学者很有帮助的-software can smooth network dialogue, the network programming beginners helpful!

版本V4.1.1,Linux上的开放源代码的IP电话软件SIP协议，主要用于语音通话，但它也支持发送文本的即时消息，即可以像ICQ那样地用文字聊天。 如果网络带宽足够的话，它还支持可视电话 Kphone是GPL的开放源代码的软件。-version 4.1.1, It is IP phone software of Linux open source code based on SIP protocol, it can be used to voice communication, and surpport text IM, same function as ICQ used to text chat. In broad band circumstance, it surpport video conference. Kphone is GPL open source software .

JRTP可用于组播也可用于单播，JRTP主页上有一个关于组播的客户端和服务器的例子，还有一个单播的客户端和服务器在同一个程序的例子，本人一直想做一个单播的客户端和服务器分开的例子，在想了一两天后终于想通，做完后发上来，秉承本人一贯风格，注释详尽、附上测试结果，倒不是什么难的东西，只是牛人都不愿做这样的东西，但还是对初学者非常有用，希望得此帮助的给个好评，只此一家，别无分店。-JRTP can be used for multicast can also be used for unicast, JRTP have a home page on the multicast client and server example, there is a unicast client and server program in the same example, I have always wanted to do a single broadcast of the separate client and server example, thinking about it for a finally realized after 12 days, after finishing up, and to inherit has been my style, notes in detail, together with test results, it is not a difficult thing, but cattle were are unwilling to do this kind of thing, but still very useful for beginners, I hope to have the help of praise, only this one, there is no branch.

IP电话演示，Delphi7编译通过-IP telephony demonstration compile Delphi7

Delphi写的IP电话源码-IP phone sourcecode writed by Delphi

RADVISION RTP源代码-RADVISION RTP source code