sendDtmf method
Send DTMF tone to remote side of the specified call
Implementation
Future<void> sendDtmf(
int callId,
String tones,
int durationMs,
int intertoneGapMs, [
int method = kDtmfMethodRtp,
]) {
return _platform.sendDtmf(
callId,
tones,
durationMs,
intertoneGapMs,
method,
);
}