Chinese RFC documents, without translation, the right to study very helpful!

一个简单的SIPproxy，拿来给大家用，很多终端都能注册-SIPproxy a simple, we used to use a lot of terminals would be registered

VB读取ID卡程序 将通用ID通讯组成8位ID卡格式。-VB read ID cards will be common procedures ID communication components eight ID card format.

主要是Java串口通信的例子,完成了java串口的监测,和多个串口之间的通信

EXCEL的安装、配置、编程接口等全工程的帮助文档，EXCEL是美国的交换机，但在中国的电信业用的很多，而且EXCEL不免费提供文档，不信你到别处-EXCEL installation, configuration, programming interface, such as the entire project to help document, EXCEL switch the United States, but in China s telecom industry with many, but not provided free of charge EXCEL documents, do not believe you go to somewhere else

Ultrawideband (UWB) multiband OFDM physical layer with fixed-point transmitterreceiver modeling

fifty years of coding theory，一篇经典的讲述纠错编码的IEEE文档，适合纠错编码读者阅读。里面详细讲述的纠错编码的发展史，包括BCH、RS、卷积码、Turbo码等编码-fifty years of coding theory, a classical error-correcting code on the IEEE document, suitable for error-correcting code readers. Which describe in detail the history of the development of error correction coding, including BCH, RS, convolutional codes, Turbo codes encoding

安捷伦CDMA网络测试工具帮助，可以参考此工具的说明进行对网络维护和测试的学习。-Agilent CDMA network testing tools to help, they can refer to the tool descriptions of network maintenance and testing of learning.

一篇详细介绍高速数据调制解调技术，主要以QPSK信号为例，包括解调和定时，挺好的-A detailed introduction of high-speed data modem technology, mainly as an example QPSK signals, including demodulation and timing, very good

GPRS中的隧道技术详细讲解，对于PS域中的GPRS，GTP-C,GTP-U很有参考价值-GPRS Tunneling technology elaborate PS domain for the GPRS, GTP-C, GTP-U is the reference value

vb + PC机与GSM modem 短信模块串口通信-vb+ PC machine message with the GSM modem serial communication module