RTCDTMFSender: canInsertDTMF property

The canInsertDTMF read-only property of the RTCDTMFSender interface returns a boolean value which indicates whether the RTCDTMFSender is capable of sending DTMF tones over the RTCPeerConnection.

Value

A boolean value which is true if the RTCDTMFSender is capable of sending DTMF tones, or false if it is not.

Examples

js
if (sender.dtmf.canInsertDTMF) {
  const duration = 500;
  sender.dtmf.insertDTMF("1234", duration);
} else {
  console.log("DTMF function not available");
}

Specifications

Specification
WebRTC: Real-Time Communication in Browsers
# dom-rtcdtmfsender-caninsertdtmf

Browser compatibility

BCD tables only load in the browser

See also