1．基本功能MT8880是一种功能较强的双沓多频（DTMF）发送与接收器件，可用于程控交换机、无线通信设备与移动通信、播叫系统、数字通信、计算机等领域。其基本功能有：（1）完整的DTMF发送接收功能；（2）具有接收呼oq音和带通滤波能力；（3）可工作于自动音频“突发”方式； 1. Basic Features The MT8880 is a powerful multi-band, multi-frequency (DTMF) transmit and receive device that can be used in areas such as program-controlled switches, wireless communications devices and mobile communications, paging systems, digital communications, and computers. Its basic functions are: (1) complete DTMF send and receive functions; (2) has the ability to receive calls oq tone and band-pass filtering; (3) can work in automatic audio “burst” mode;