XMODEM协议的源代码，我们都知道一个协议的源，以固…

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

anydata 模块AT命令组,无线通讯模块参数-anydata AT commands dial

VB的MODEM通信源代码，包括MODEM初始化，自动检测电脑串口数量，MODEM参数设置等-VB source code for the MODEM communications, including MODEM initialization, the computer automatically detects the serial number, MODEM parameter setting, etc.

功能十分强大的拨号程序，可以选择拨号连接，设置拨号参数-function very powerful dial-up procedure, we can choose to dial-up connections, dial-up parameters set

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.

qam的解调程序，可以参考，对学习有帮助-qam demodulation process, you can reference on learning to help

wavecom GPRS model AT pdf

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

该程序为QPSK解调程序，符号速率2M,采样速率为64M-The program procedures for QPSK demodulation, symbol rate of 2M, the sampling rate of 64M

UART device driver for PC-to-PC communication using Null Modem Cable