使用vb制作的电话拨号程序，信号清晰稳定，测试的时候需要语音猫...

用API函数自动实现拨号上网的程序-with API function automatically dial-up procedures

基于wavecom公司的Q24_plus GPRS/GSM 模块的无线modem的原理图设计，软件格式为ORCAD的DSN-On wavecom" s Q24_plus GPRS/GSM wireless modem module, the schematic design, software ORCAD format of the DSN

XMODEM/YMODEM PROTOCOL REFERENCE

一个封装的Modem AT命令操作类的快速拨号程序-A package of Modem AT command type of speed dial operation procedures

自去收发传真程序，检查MODEM,自动设置，发送，接收。完全适用。-to send and receive faxes from the procedures, inspection MODEM, automatically set, sending, receiving. Fully applicable.

一个小的显示MODEM的安装写入程序，有一些基本的东西。-Showed a small write MODEM installation procedures, there are some basic things.

gprs协议栈代码.所谓协议栈就是对信息进行多次封装和解封的过程，以便能够在不同的实体间传送信息。本源代码来自Indian Institute of Technology-gprs protocol stack code. The so-called agreement is the right information Stack several Packaging, and the course was cleared, to the various entities to disseminate information. Source code from the Indian Institute of Technology

汇总了多种设备的AT指令。包括：PDA，GPRS，Fax等。-Summarizes the AT commands to various pieces of equipment. Including: PDA, GPRS, Fax and so on.

短信PUD开发文档,通过AT指令发送手机短信,中文通过PUD编码.-Message PUD development documents, through the AT command to send the phone message, the Chinese through the PUD code.

qpsk在加性高斯白噪声下的误码率仿真 -qpsk BER simulation