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Using DTMF with WebRTC - Web APIs
falling " + "back to the <strong>deprecated</strong> addstream() method..."); callerpc.addstream(stream); } if (callerpc.getsenders) { dtmfsender = callerpc.getsenders()[0].dtmf; } else { log("your browser doesn't support rtcpeerconnection.getsenders(), so " + "falling back to use <strong>deprecated</strong>
createdtmfsender() " + "instead."); dtmfsender = callerpc.
createdtmfsender(audiotracks[0]); } dtmfsender.ontonechange = handletonechangeevent; } after setting audiotracks to be a list of the audio tracks on the stream from the user's microphone, it's time to add the media to the caller's rtcpeerconnection.
... if getsenders() isn't available, we instead call rtcpeerconnection.
createdtmfsender() to get the rtcdtmfsender object.