GetDigits not receiving DTMF about plivoframework HOT 8 CLOSED

<include>
  <context name="public">

    <extension name="unloop">
      <condition field="${unroll_loops}" expression="^true$"/>
      <condition field="${sip_looped_call}" expression="^true$">
    <action application="deflect" data="${destination_number}"/>
      </condition>
    </extension>
    <!--
    Tag anything pass thru here as an outside_call so you can make sure not
    to create any routing loops based on the conditions that it came from
    the outside of the switch.
    -->
    <extension name="outside_call" continue="true">
      <condition>
    <action application="set" data="outside_call=true"/>
    <action application="set" data="RFC2822_DATE=${strftime(%a, %d %b %Y %T %z)}"/>
      </condition>
    </extension>

    <extension name="call_debug" continue="true">
      <condition field="${call_debug}" expression="^true$" break="never">
        <action application="info"/>
      </condition>
    </extension>

    <!--
     This extension allows calling any digits of number
     freeswitch will call plivo outbound server on every incoming call
    -->
    <extension name="plivo_public_did">
        <condition field="destination_number" expression="^(\d+)$">
            <action application="enable_heartbeat" data="60"/>
            <action application="socket" data="69.168.53.39:8084 async full"/>
        </condition>
    </extension>

  </context>
</include>

<Response>
  <GetDigits action="http://127.0.0.1:5002/inbound/getdigits">
    <Play>/usr/local/freeswitch/scripts/jovan-welcome.wav</Play>
  </GetDigits>
</Response>

<Response>
  <Play>/usr/local/freeswitch/scripts/jovan-thankyou.wav</Play>
</Response>