华为EM310无线模块快速开发指南，包括GPRS拨号上网，短信开发流程等等。-Huawei EM310 radio modules for rapid development guidelines, including GPRS dial-up Internet access, text messaging development process and so on.

EM310 华为公司的GSM/GPRS 模块，技术手册 最新版本-EM310 Huawei' s GSM/GPRS module, the latest version of technical manuals

华为GTM900 EM310等AT指令测试，支持标准AT命令，支持GPRS网络通讯-Supports the standard AT commands to support the GPRS network communications, the Huawei GTM900 EM310, and other AT command test