很不错的xml解析工具，有助你理解xml的用法

用MODEM拨号程序-using dial-up procedures MODEM

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

开发gprs的AT命令文档，-Gprs development of the AT command document,

zmodemclass的经典源码，原来旧的代码，有很多问题，比如文件名读取错误等，都已经被我修复。-zmodemclass classic source, the original old code has a lot of problems, such as the file name read error and so on, I have been repaired.

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

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

ADSL 接入技术已成为终端用户最主要的宽带接入技术。ADSL 技术的关键是ADSL 调制解调器,即ADSL MODEM。ADSL 用户端调制解调器驱动器是一个宽频带功率放大器,他能不失真放大和传输电话线上已编码的数字信号。 本文通过对ADSL 调制解调器驱动器特点、结构和性能的分析,给出了一种ADSL 用户端MODEM 驱动器的实现电路。该 电路采用具有优良高频的双功率放大器L T1886 ,即使在配置高电平的闭环增益网络后也能保持较低的失真。-ADSL access technology has become the most important end-user broadband access technology. ADSL technology is the key to ADSL modem, that is, ADSLMODEM. ADSL modem client driver is a broadband power amplifier, the distortion that he can not enlarge and transfer telephone lines have been encoded digital signal. Based on the ADSL modem driver characteristics, structure and performance analysis, we give a ADSL client realize MODEM driver circuit. The circuit has an excellent high-frequency power amplifier of the dual-L T1886, even though high in the configuration of the closed-loop gain network also able to maintain low distortion.

一个很不错的语音电话源码-a very good voice source

e1-framer for developing E-1 modems

modem通信编程技术-modem communications programming technology