RTCDTMFSender.ontonechange

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
Web Audio API The definition of 'ontonechange' in that specification.	Working Draft

Browser compatibility

See also

• WebRTC API
• Using DTMF with WebRTC
• RTCDTMFSender