一个网络电话的例子

是Opengatekeeper项目的扩展。它支持通过RTP（音频和视频）网守的路由和T.120通讯，因此没有通讯直接在endpoints间进行。-Opengatekeeper project is the expansion. Through its support for RTP (audio and video) Gatekeeper routing and T.120 communications, there is no direct communication between the endpoints.

CS多客户端聊天工具 V1.0 可以多人在线聊天。经测试可以三十人以上，更多未测。

H.225 video-telephone protocol,specification document,for reference only

SIP协议栈开发（minsip）

oSIP开发者手册-oSIP Development Manual

这是一个ip电话，可以帮助大家了解和学习ip软电话的做法啊-This is an ip phone, can help you understand and learn the practice of ah ip soft phone

this sip voip source code too. i dont know why it does not work. please check and then send back to me. thanks -this is sip voip source code too. i dont know why it does not work. please check and then send back to me. thanks

2003年最新版ITU-T H.323协议全文，为H.323IP电话系统开发工作提供最权威、最直接的指导。-2003 the latest version of the ITU-T H.323 transcript of H.323IP telephone systems development work to provide the most authoritative and most direct guidance.

intel的IPP包用于语音编码的实例代码-the voice packets for source code examples

The Auerswald ETS 4308i ISDN PBX Reverse Engineering Project是一种完全开放式的源客户端软件适用于the Auerswald ETS 4308i ISDN PBX。它的目的是为有效地使用LCR-feature of the PBX 提供工具，为改换PBX的配置，为读取电话数量，为将ISDN-D-channel-protocol of the PBXzuop作为输入源或者isdnlog来使用。-ETS 4308i ISDN PBX Reverse Engineering Project is a completely open-source client software applicable to the George Mason ETS 4308i ISDN PBX. It is designed for the effective use of LCR-feature of the PBX with the tools to change the configuration of PBX, telephone number for readers to be ISDN-D-channel-PBXzuop protocol of the input source or isdnlog to use it.