osip2-3.2.0源代码,oSIP及其扩展eXosip作为开源的SIP协议栈，以其结构简单、功能丰富、易于移植等优点成为在嵌入式系统上构建VoIP应用的首选。-osip2-3.2.0 source code, oSIP and its expansion eXosip as open-source SIP protocol stack, with its simple structure, feature-rich, easy to transplant into the advantage

这是最新的opal的代码，里面有工程，但是要是要用的话，还有一个漫长的过程，首先就要ptlib，-This is the latest code opal, which has works, but if used, then have a lengthy process, the first thing ptlib