PPsay一个CS模式的点对点聊天架构，2000+D7编译通过。 包含客户、服务端两套源码。-PPsay CS model of a peer-to-peer chatting structure, 2000 D7 compile. Customer service-the two sets of source code.

* Develop JAVA API for telephony signaling. * Research uploadable service scr ipts for IP Telephony service creation. * Research the application of SIP Signaling to presence / location tracking and device control and its relationship to pervas