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。...

一个通过串口把PC机与MODEM连接的程序，可以拨号与发送短信-Serial put through a PC and modem connection procedures can dial-up and send a message

利用MSComm控件，通过串口发送AT指令操作Modem。在2台计算机之间进行数据传输。-use MSComm control, sent through serial AT command operation Modem. In between the two computers for data transmission.

通过GSM模块发送接收短消息的程序，可发送免提信息-GSM module send and receive text messages, may send a hands-free information

调制解调器网络编程，对用的它的人会看看的-modem network programming, it is the right of people will see the

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

Modem连接的VC实现，演示如何用VC对Modem进行读写，可作为Modem编程的范例-VC and VC demonstration on how to use Modem write, as an example of programming Modem

本程序需要调制解调器的支持，否则可能失败，需要调制解调器支持语音传输，本程序在子弹头调制解调器下调试通过，通话时通过麦克风和话筒来进行。-This procedure required the support of a modem, or may fail to support the required voice modem, the program under the debug modem bullet passed through a microphone and call for the microphone.

一个封装的Modem AT命令操作类的快速拨号程序-A package of Modem AT command type of speed dial operation procedures

这是一个完整的无线通讯工程，利用无线MODEM与外界交互。-This is a complete wireless communications engineering, the use of wireless MODEM interaction with the outside world.

Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID Support blind transfer, single-step transfer/conference, consultation transfer/conference, hold, unhold. Control of the local phone handset, microphone and speaker of the modem Send and receive faxes Play and record on the phone line or sound card Play music in background mode Silence detection VU Meter Wave sound editor that allows your end-users to edit their own sound files. Voice recognition and voice synthesis. Full control over the serial port device ZModem file transfer utility File compression and encryption utility