Pidgin下的qq和飞信插件源代码，其中飞信的使用php语言写的，可以用来研究sip协议-Source code of the Fetion and QQ in the Pidgin. Fetion is programed with the php language, which would be a good tool to do research about sip protocol

这是一个呼叫中心的php源码，具体怎么用还有待高人二次研发，呼叫中心的具体应用还有很多，比如群呼，网内通信，ip通信-This is a call center of the php source code, specifically how to use yet Gaoren secondary research and development, call center there are many specific applications, such as group call, net

php视频会议源码，支持多人视频，以及演讲模式，最多支持50人同时视频-php video conferencing source code, support multiplayer video, and speech patterns, supports up to 50 simultaneous video

encoded php source code