RTCPeerConnection: createDTMFSender() method

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

This method is deprecated and should not be used. Instead, use the dtmf property to access the DTMF sender associated with a specific sender.

Syntax

createDTMFSender(track)

Parameters

• track
  • : A MediaStreamTrack object representing the track to associate with the new DTMF sender.

Return value

A new 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 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

See also

• WebRTC
• RTCDTMFSender
• RTCRtpSender
• RTCPeerConnection