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
Using canInsertDTMF to check DTMF support
This example shows how to use the canInsertDTMF
property to check DTMF support in a WebRTC connection and then send tones if supported.
The code first checks if the canInsertDTMF
property is defined, and if so, uses it to check whether inserting DTMF tones is supported.
If the feature is supported, RTCDTMFSender.insertDTMF()
is called to insert a tone.
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