这是一个开源码的sip用户代理 写的都很清楚是用C＋＋语言开发的 对于研究sip协议的朋友绝对是有很好的参考价值-This is a sip of the open-source user agent was made very clear is the C + + language development agreement for research sip of a friend is definitely a good reference value

值得一看，对于网络管理代理的开发有很大帮助作用，大力推荐-eye-catcher for network management agent is very helpful development, strongly recommended