一个用c写的基于sip协议栈的demo用户端程序，简单易懂，对sip的VoIP的学习有借鉴作用。-A demo client program based on sip protocol stack, which is easy to understand, and helpful to learn VoIP based on sip.

使用LumiSoft.NET 第三方库，引用网上的例子，修改实现了客户端注册服务器时，出现407的错误，使用前请配置好Settings下的XML文件(The use of LumiSoft.NET third party library, citing online examples, modify the client to achieve registration server, there are 407 errors, please use the configuration of Se

Gb28181, written by others, captures the video stream and converts it into H.264 video stream. The SIP protocol is pjsip. To do this, the mainstream is c++. Which God would like to update and open source for the benefit of China?