freeswitch配置之dtmf

一、呼入接收带内(inband)按键

 

 

< extension  name = "ivr_demo" >

   < condition  field = "destination_number"  expression = "5000" >

     < action  application = "answer" />

     < action  application = "start_dtmf"  />

     < action  application = "ivr"  data = "demo_ivr" />

   condition >

extension >

 

 

二、怎么实现把aleg的rfc2833或者info的dtmf转成带内(inband)传给bleg？

 

< action  application = "export"  data = "nolocal:execute_on_media=start_dtmf_generate" /> < action  application = "set"  data = "bridge_early_media=true" /> < action  application = "bridge"  data = "sofia/..." />

 

 

三、实现多种dtmf获取方式

 

四、关于带内start_dtmf无法收到按键的问题 

   spandsp_start_dtmf

五、esl无法收码的问题

   订阅DTMF消息，程序调用app（playback，speak， park等）从收码队列中获取按键