Hi, I am using avmd to detect beep over a channel. Beep is generated by below script. 

<extension name="10014">
       <condition field="destination_number" expression="^1001$">
        <action application="playback" data="tone_stream://L=5;%(500,6850,850)"/>
         <action application="hangup"/>
       </condition>
  </extension>

and starts avmd on fs_cli as.

freeswitch@debian>avmd 30d99731-4ff3-4f02-ad4b-85a3a8b9d600 start


I could proper hear beeps over the phone but does not see avmd detecting this. Does not see anything like "beep detected" in logs.

I am made several attempts but unable to detect beep even a single time. 

Is there something wrong that i am doing?

Thanks in advance.