华为UMTS Datacard /调制解调器AT命令接口规范

一个学习AT指令的好东东，而且是中文的，十分详细。-a study AT command of the Eastern good, but Chinese and very detailed.

华为的GSM模块EM310,AT指令集和编写的例子-Huawei" s GSM module EM310, AT instruction set and the preparation of examples of

一个通过串口把PC机与MODEM连接的程序，可以拨号与发送短信-Serial put through a PC and modem connection procedures can dial-up and send a message

一个拨号程序，用delphi开发

这是我在学校做通信时留下的资料 希望能给你带来帮助-This is what I do in school to communicate the information to stay I hope you will help

用于电力工业中数据的采集、显示，判断电力故障，可以最大限度地方便用户从采集的数据中获取所需要的信息。并且用到了MODEM通讯，数据远传等。-For the electric power industry in data collection, display, determine the power failure, you can maximize the user-friendly from the data collected to obtain the required information. And used a MODEM communications, data, etc. FarEasTone.

mc55上关于GPRS连接和测试的文本，使用AT命令实现测试 -mc55 on GPRS connection and testing of the text, use the AT command to test mc55 on GPRS connection and testing of the text, use the AT command to test

PN code Generator PN code Generator-PN code Generator PN code Generator PN code Generator

XMODEM/YMODEM PROTOCOL REFERENCE

Ｖ21解调程序中关键部分-V21 demodulation process key part