@Override
public void onPlayDtmfTone(char c) {
final TelephonyConnection connection = getFirstConnection();
if (connection != null) {
connection.onPlayDtmfTone(c);
}
}
@Override
public void onStopDtmfTone() {
final TelephonyConnection connection = getFirstConnection();
if (connection != null) {
connection.onStopDtmfTone();
}
}
/** Invoked when the conference should be moved from hold to active. */
@Override
public void onUnhold() {
final TelephonyConnection connection = getFirstConnection();
if (connection != null) {
connection.performUnhold();
}
}