windows/linux平台下C语言编写的sip软电话siphon最新版本。

vc编写的sip客户端，配合sip代理服务器一起使用，无需其他库文件，直接编译即可

一个ip电话的源代码- A ip telephone source code

osip的高层扩展，用于开发Voip软件，方便开发。-osip senior extension for the development of Faith software, and facilitate the development.

视频聊天源码客户端-video chat client FOSS

RTCP.RTP方面的源码,方便大家学习.-RTCP.RTP source area for everyone to learn.

sip协议中sdp消息姐学习笔记，介绍了sdp消息的组成-sdp message sip agreements sister study notes on the composition of the sdp message

自己动手写的sip协议栈，SIP（Session Initiation Protocal）称为会话初始化协议，是由IETF（Internet Engineering Task Force）组织于1999年提出的一个基于IP网络中实现实时通信应用的一种信令协议。-Do-It-Yourself wrote sip protocol stack, SIP (Session Initiation Protocal) known as the Session Initiation Protocol is the IETF (Internet Engineering Task Force) organization in 1999 as a network-based real-time IP communications applications a letter the agreement.

可以直接用VC进入修改编译的基于语音卡上的开发平台，有流程的图形编辑器-can directly enter the VC changes compiler- based voice on the card development platform, a process graphics editor

eXosip is a GPL library that extend the capability of the oSIP library. It aims to implement a simple high layer API to control the SIP for sessions establishements and common extensions.

无线信道模拟软件-Channel simulation software