Web/API/RTCDTMFSender/ontonechange

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The ontonechange property of the RTCDTMFSender interface is used to set the event handler for the tonechange event, which is sent to the RTCDTMFSender each time a tone begins or ends. The event handler receives as input a single parameter of type RTCDTMFToneChangeEvent, which describes the change.

Syntax

RTCDTMFSender.ontonechange = toneChangeHandlerFunction;

Value

A function which is called when a tonechange event is sent to the RTCDTMFSender, indicating that a DTMF tone has either started playing, or if all tones have finished playing.

Example

tbd

Specifications

Specification	Status	Comment
WebRTC 1.0: Real-time Communication Between BrowsersThe definition of 'ontonechange' in that specification.	Candidate Recommendation

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`ontonechange`	Chrome Full support 27	Edge Full support ≤79	Firefox Full support 52	IE No support No	Opera Full support Yes	Safari ?	WebView Android Full support Yes	Chrome Android Full support 27	Firefox Android Full support 52	Opera Android Full support Yes	Safari iOS ?	Samsung Internet Android Full support 1.5

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown