code: void send(final InterfaceFeature feature, final byte... featureValue)
  		throws KNXConnectionClosedException, KNXAckTimeoutException, InterruptedException {
  		synchronized (lock) {
  			final TunnelingFeature set = TunnelingFeature.newSet(channelId, getSeqSend(), feature, featureValue);
  			send(set);
  		}
  	}
docs: sendFeature / setFeature?