用MODEM来发短信，包括PDU的算法，较为详细！

调制解调器编程，用的是AT命令，一个很好的学习例子。-modem programming, using the AT command, a good learning examples.

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

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.

Linux下gsm/gprs modem的看守程序。支持短信发送与接受。-Linux under the gsm/gprs modem guard procedures. Support and acceptance of message sent.

qam的调制程序，可以参考查看，对学习有帮助-qam modulation process can refer to the view, be helpful in learning

ras拨号登录控件及示例-dial-up login controls and sample

AT命令整理(打电话与收发短信),因为我做的这个模块只用打电话与发短信的功能 -AT command processing (send and receive phone calls with the message), because I make this module only call and send text messages function

LDPC编码的GFQ程序源代码，用于信道编码，可以编码LDPC矩阵，并进行交织译码-LDPC coding GFQ source code for channel coding, LDPC coding matrix, Decoding and intertwined

XModem协议源码，众所周知的一个协议的源码，搞arm的第一个程序基本上就是这个-XMODEM protocol source code, as we all know the source of an agreement, to engage the first arm is basically a program that