这个是TR800 GPRS模块的有关详细资料。里面有用户手册，AT指令。有关与TR800的都有了。-This is the TR800 GPRS module details. There are user manuals, AT commands. With the TR800 have.

新加坡IWOW公司TR800彩信模块的测试代码，基于AT89C51的，详细描述了AT命令的用法-TR800 Singapore company IWOW MMS module test code, based on AT89C51, and a detailed descr iption of the AT command usage

Iwow TR-900 GPRS command document.