H.323 2000年规范的文档，是H.323 V4的标准，这是目前最通用的版本，是学习开发H.323的必备材料。...

该程序是将HDB3码与消息码相互转换，在某些转换方面的东西做的不是很好，求高人改进-The program is HDB3 code between code and message conversion, and in some conversion to do something not very good, seeking to improve Gao Ren

多线程扫描IP段，可以控制线程数量。简单实现了聊天功能-Multi-threaded scanning IP paragraph, you can control the number of threads. Realize a simple chat

本代码用VERILOG HDL语言编写了SPI模块，通过用modelsim进行仿真，得到了正确的仿真结果，并将其下载到fpga开发板上进行试验，也得到了较好的效果。

一个串口包装类及演示程序,非常好用，代码都有详细注解！-A serial wrapper class and demo program, very easy to use, the code has detailed notes!

simcom模块中文资料，介绍的比较说细-English simcom module information, said the introduction of relatively small

这是在windows上使用modem通信的例子程序，有很高的实用价值，同时也可以学习到tapi的编程方法-This is the windows on the use of the example of modem communications procedures with a high degree of practical value, they can also learn the programming methods TAPI

剑灵信使是一个可以向本地局域网或本地域内的NT内核操作系统发送短信息的小软件。 密码:www.swordelf.com-Sword of Hope is a messenger to the local LAN or local area of the NT operating system kernel send text messages to a PC. Password : www.swordelf.com

NTERNATIONAL TELECOMMUNICATION UNION ITU-T T.4 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2003) ITU-T T.4 2003. SERIES T: TERMINALS FOR TELEMATIC SERVICES Standardization of Group 3 facsimile terminals for document transmission ITU-T Recommendation T.4 ITU-T Rec.

中文RFC文件，无需翻译，对学习很有帮助！

基于低速链路的IP/UDP/RTP报头压缩协议。-This document describes a method for compressing the headers of IP/UDP/RTP datagrams to reduce overhead on low-speed serial links.