This article introduce a method to integrated following functions in a single module:DTMF/MFC Codec,2:1 ADPCM speech Codec, IVR, recorder, telephone conference,all these could work simultaneously in 32 channels.

• 本文提出了一种方案,可以在一个模块上实现32路DTMF/MFC信号的接收、发送,ADPCM语音压缩解压缩、IVR、录音,电话会议。