RTCDTMFToneChangeEvent event

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Firing an tonechange event uses the RTCDTMFToneChangeEvent interface to create and dispatch DTMF tones to the given target.

Syntax

 

Event handler parameters

• tone
  Type: DOMString

  The tone attribute contains the character for the tone that has just begun playout (see insertDTMF()). If the value is the empty string, it indicates that the previous tone has completed playback.

Standards information

• Object RTC (ORTC) API for WebRTC

RTCDTMFToneChangeEventInit Dictionary

Member	Type	Description
tone	DOMString, defaults to ""	The tone parameter is treated as a series of characters. The characters 0 through 9, A through D, #, and * generate the associated DTMF tones. The characters a to d are equivalent to A to D. The character ',' indicates a delay of 2 seconds before processing the next character in the tones parameter. Unrecognized characters are ignored.

 

See also

RTCDtmfSender