CMX868 MODEM remote communication source recommend that you refer to

ADSL 接入技术已成为终端用户最主要的宽带接入技术。ADSL 技术的关键是ADSL 调制解调器,即ADSL MODEM。ADSL 用户端调制解调器驱动器是一个宽频带功率放大器,他能不失真放大和传输电话线上已编码的数字信号。 本文通过对ADSL 调制解调器驱动器特点、结构和性能的分析,给出了一种ADSL 用户端MODEM 驱动器的实现电路。该 电路采用具有优良高频的双功率放大器L T1886 ,即使在配置高电平的闭环增益网络后也能保持较低的失真。-ADSL access technology has become the most important end-user broadband access technology. ADSL technology is the key to ADSL modem, that is, ADSLMODEM. ADSL modem client driver is a broadband power amplifier, the distortion that he can not enlarge and transfer telephone lines have been encoded digital signal. Based on the ADSL modem driver characteristics, structure and performance analysis, we give a ADSL client realize MODEM driver circuit. The circuit has an excellent high-frequency power amplifier of the dual-L T1886, even though high in the configuration of the closed-loop gain network also able to maintain low distortion.

用于电力工业中数据的采集、显示，判断电力故障，可以最大限度地方便用户从采集的数据中获取所需要的信息。并且用到了MODEM通讯，数据远传等。-For the electric power industry in data collection, display, determine the power failure, you can maximize the user-friendly from the data collected to obtain the required information. And used a MODEM communications, data, etc. FarEasTone.

语音电话高级编程。。大家可以参考一下。还行-Voice calls high-level programming. . We can refer to. Line also. .

诺亚短信控件 ~~~~~~~~~~~~ 本控件支持大部分的手机和GSM工业模块,通过计算机串口或USB转串口可以 实现手机或GSM工业模块短信收发，电话簿管理，拨打电话等工作. 一、主要特点: ========== 1.数据收发可靠，经过大量短信收发的检验 2.可以同时处理短信发送，和短信接收工作 3.多个操作可以同时进行，不会产生数据遗失 4.允许读取所有电话簿,读取所有短信，读取短信数量和容量 5.允许获取模块信息,可以读取模块厂商,设备ID,IMEI,IMSI及所属网络 6.允许用户设定短信自动接收 7.允许用户设定读取短信后是否删除 8.短信发送状态指示 9.BenQ M22模块及其AT指令兼容模块适用 10.数据捕获功能，方便调试模块及AT命令 11.每小时的平均发送速度约600条左右 -Noah SMS Control ~~~ ~~~ support of the majority of the controls and GSM mobile phone industry Die Block, through the computer serial port or USB serial transfer can be achieved or GSM mobile phone text messages industrial transceiver module, Directory management and dialed phones. a main features : ========== 1. reliable data transceiver, After a large number of text messages sent or received by two tests. can also handle text messages sent, and SMS 3. more operation can be done concurrently and Data have not lost four. Allow access to all telephone di

一个完整的短讯网关示例,支持短讯收发,支持UDP及Text格式.-a complete SMS Gateway example, support SMS transceiver to support UDP and Text formats.

这个是TR800 GPRS模块的有关详细资料。里面有用户手册，AT指令。有关与TR800的都有了。-This is the TR800 GPRS module details. There are user manuals, AT commands. With the TR800 have.

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。-zmodemclass classic source, the original old code has a lot of problems, such as the file name read error and so on, I have been repaired.

YModem 的上传协议。 可做C 等相关参考。 -From the YModem agreement. Do C and other related reference.

开发gprs的AT命令文档，-Gprs development of the AT command document,

用API函数自动实现拨号上网的程序-with API function automatically dial-up procedures