此为华为GTM900B模块的详细资料！包括接法和指令集！-This is Huawei GTM900B module details! Including the then law and instruction set!

华为gtm900模块的资料，很全面，够你用的了。 1.具体介绍了上线流程 2.一些硬件结构-Huawei GTM900 module information, very comprehensive and you have enough of. 1. The specific introduction of on-line flow 2. Some of the hardware structure