基于SIP协议的即时消息聊天功能设计,Symbian平台下实现-based SIP instant messaging chat function design, under the Symbian platform

Symbian系统手机上的即时聊天项目设计，与QQ聊天工具功能类似。-Symbian system, real-time chat on the phone project design, with the QQ chat function is similar.