! colspan="2" align="center" style="background: black; color: white;"|Packet Type
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|-
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| 1||Data packet requiring acknowledgment
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|}
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+
Acknowledgment packet should have the same packet id as acknowledged data packet and empty data payload. Acknowledgement should be sent in binary format
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+
{| class="wikitable"
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|-
+
! colspan="3" align="center" style="background: black; color: white;"|Acknowledgment packet
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|-
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| Packet length || 2 bytes || 0x0003
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|-
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| Packet id || 2 bytes || same as in acknowledged packet