private void initSegmentedControlAcknowledgementTimer(final int seqZero, final int ttl, final int src, final int dst, final int segN) {
        if (!mSegmentedControlAcknowledgementTimerStarted) {
            mSegmentedControlAcknowledgementTimerStarted = true;
            final int duration = BLOCK_ACK_TIMER + (50 * ttl);
            mDuration = System.currentTimeMillis() + duration;
            mHandler.postDelayed(() -> sendBlockAck(seqZero, ttl, src, dst, segN), duration);
        }
    }
Start acknowledgement timer for segmented messages.

@param seqZero Seqzero of the segmented messages.
@param ttl     TTL of the segmented messages.
@param src     Source address which is the element address
@param dst     Destination address.
mesh/src/main/java/no/nordicsemi/android/mesh/transport/LowerTransportLayer.java