实现一个简单的电话簿程序,具有添加,删除,查询电话号码的功能-To achieve a simple phone book program has to add, delete, check functional telephone number

本设计是基于ARM7微处理器LPC2103为核心，利用双音多频(Dual Tone Multi Frequency，DTMF)信号进行电话按键号码识别。用户可通过电话通信实现对家庭相关电气设备状态的查询和控制，以及电话留言和对留言的提取-The design is based on microprocessor LPC2103 control of ARM7, use DTMF (Dual Tone Multi Frequency, DTMF) to identify the phone num