SIM300代码拨打电话、GPRS收发短信、彩信C++源程序-SIM300 code call, GPRS to send and receive SMS, MMS C++ source program

移动增值业务,主要介绍3G方面的知识。彩信的一些基本知识，对于移动增值开发工程师有很大的帮助。-Mobile value-added services, mainly introduce 3G knowledge. Some basic knowledge of MMS for the mobile value-added development engineer has a great help.