通过对家用电器远程电话控制系统的介绍， 系统阐述一种基于AT89C51单片机的远程控制系统的设计、应用思路，将它推荐给各位同行、学生参考。同时，将芯片MT8870和ISDI400的关键功能以及应用做一些简明扼要的介绍。-Household appliances by remote telephone control system introduced, the system described AT89C51 microcontroller based remote control system design, application ideas, you will recommend it to colleagues, students. Meanwhile, the chip MT8870 and ISDI400 critical functions and applications to do some brief introduction.