用VC实现PC并行端口数字信息的输入/输出.

支持Telnet功能的Modem通讯程序 -Modem commnunication supports telnet

FSK详细资料，关于FSK/DTMF相关的资料等等 -FSK detailed information on the FSK/DTMF-related information, etc.

华为的最新彩信SDK，希望能帮到各位，-Huawei"s latest MMS SDK, hope to be able to help you,

G.729 A的文档，很多人都找不到该文档，所以上传，对G729语音编码来说是个基础的文档。-G.729 A document, a lot of people can not find the document, upload, Speech Coding right G729 is a basis for the document.

收发短信VC++代码,最近用了,感觉还可以,推荐给大家,-VC++ code for sending and receiving text messages, most recently used, feeling also and recommend it to everyone

基于PPP链路的IP/UDP/TCP报头压缩协议。-PPP link-based IP/UDP/TCP header compression protocol.

ipmsg 2.06 源码 好用的局域网im通讯工具-source code of ipmsg 2.06

网上收集的FLASH整站系统,附加源代码.-FLASH online collection stations throughout the system, additional source code.

单片机串口通信程序集，51单片机串口调试程序一例-Microcontroller serial communication assembly, 51 MCU serial debugger one cases

使用USR和RockWell Modem的语音Modem程序 -Modem program Using 3Com USR Modem and RockWell Modem