mc55上关于GPRS连接和测试的文本，使用AT命令实现测试

实现QPSK和BPSK的调制解调程序，仅供参考

e1-framer for developing E-1 modems

电话拨号程序，附有简易的拨号键盘，能通过modem通话-Telephone dial-up procedures, accompanied by simple dial-up keyboard, through the modem to call

FTP/TCP/stack for modems ( FORTH platform for Forth-machine)

面向通信控制器硬件的通信程序设计：基于PC标准通信口的通信程序设计，基于MODEM的通信程序设计，基于网络适配器的通信程序设计。 网络通信系统的应用实验 -Communication controller hardware-oriented communications program design: Based on standard PC communications port communication program design, based on the MODEM communications programming, network adapter based on the design of communication procedures. Network Communication System Experiment

gsm模块AT指令代码-gsm AT command module code

利用MSComm控件，通过串口发送AT指令操作Modem。在2台计算机之间进行数据传输。-use MSComm control, sent through serial AT command operation Modem. In between the two computers for data transmission.

可以自动接收短信，可以发送短信，可以拨打电话（已通过测试）注：短信中心号需要自己去设一下-can automatically receive text messages that can send text messages, phone calls (the test) Note : SMS center, it needs its own to create what

喜欢工业短信 modem的朋友福音 喜欢工业短信 modem的朋友福音-Like industrial SMS modem evangelical friends like friends industrial SMS modem Gospel

qamTx.rar:Modem Transmitter and Channel Simulator的例程,实用程序-qamTx.rar: Modem Transmitter and Channel Simulator of routines, practical procedures