toneBuffer property
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Returns a list of the tones remaining to be played out.
Syntax
//It is always safe to append to the tone buffer.
//This example appends before any tone playout has started as well as during playout.
var sender = new RTCDtmfSender(sendObject);
sender.insertDTMF("123");
// append more tones to the tone buffer before playout has begun
sender.insertDTMF(sender.toneBuffer + "456");
sender.ontonechange = function (e) {
if (e.tone == "1")
// append more tones when playout has begun
sender.insertDTMF(sender.toneBuffer + "789");
};
Property values
Type: DOMString