RTCPeerConnection: createDTMFSender() method

{{APIRef("WebRTC")}}{{Deprecated_Header}}{{non-standard_header}}

The createDTMFSender() method of the {{domxref("RTCPeerConnection")}} interface creates a new {{domxref("RTCDTMFSender")}} object associated with the specified {{domxref("MediaStreamTrack")}}, which can be used to send DTMF tones over the connection.

This method is deprecated and should not be used. Instead, use the {{domxref("RTCRtpSender.dtmf")}} property to access the DTMF sender associated with a specific sender.

Syntax

createDTMFSender(track)

Parameters

• track
  • : A {{domxref("MediaStreamTrack")}} object representing the track to associate with the new DTMF sender.

Return value

A new {{domxref("RTCDTMFSender")}} object.

Examples

This example creates a new DTMF sender associated with the specified track.

navigator.getUserMedia({ audio: true }, (stream) => {
  const pc = new RTCPeerConnection();
  const track = stream.getAudioTracks()[0];
  const dtmfSender = pc.createDTMFSender(track);
});

This could be rewritten using the {{domxref("RTCRtpSender.dtmf")}} property:

navigator.getUserMedia({ audio: true }, (stream) => {
  const pc = new RTCPeerConnection();
  const track = stream.getAudioTracks()[0];
  const sender = pc.addTrack(track, stream);
  const dtmfSender = sender.dtmf;
});

Specifications

This feature is non-standard and not part of any specification.

Browser compatibility

{{Compat}}

See also

• WebRTC
• {{domxref("RTCDTMFSender")}}
• {{domxref("RTCRtpSender")}}
• {{domxref("RTCPeerConnection")}}