智能接听电话机设计

Design on Intelligent Answering Telephone

为了解决一线多机的办公室接听电话转接的问题,设计了一种智能接听电话机。在研究普通电话机原理的基础上,以单片机AT89C51和语音芯片ISD1420为核心,对电话进行检测,当检测到振铃信号后,实现自动答应,并将对方所说的话通过扬声器播放出来,实现自动呼叫。经试验验证,本系统能实现预期目标,运行稳定,可应用于小型办公室,将有利于提高办公室的通话办事效率。

In order to solve the switching problem of multi - machine office telephone, an intelligent answering telephone is designed. On the basis of the principle of the ordinary telephone, MCU AT89S51 and voice chip ISD1420 are adopted as the core to detect call. When a ringing signal is detected, answering automatically is achieved. Moreover, it realizes automatic call through a speaker. The results of experiment show that the system can achieve the desired goals, operating stability. This system can be applied to small office, be helpful to improve the communication efficiency of office.