How to disable the DTMF message in Media Streams – Twilio Support

We have recently enabled DTMF message for customers using Media Streams. By default a DTMF message will be sent when someone presses a touch-tone number key (such as the "1" key in the example message below) in the call, typically in response to a prompt in the outbound stream.

To disable receiving DTMF messages you need to add a custom parameter into your <Stream> verb:

<Parameter name="Dtmf" value ="False" />

The full <Stream> verb block with DTMF messages blocked:

<Response>
  <Connect>
    <Stream name="Example Audio Stream" url="wss://mystream.ngrok.io/example" >
      <Parameter name="Dtmf" value ="False" />
    </Stream>
  </Connect>
</Response>

For more information on using Stream see our Docs on <Stream> TwiML Verb.