Claim: The current Zigbee protocols (developed by Zigbee Alliance), support beacon-enabled and non-beacon-enabled networks, where in non-beacon-enabled networks, an unslotted CSMA/CA channel access mechanism is used.
Evidence: The current Zigbee protocols support beacon-enabled and non-beacon-enabled networks. In non-beacon-enabled networks, an unslotted CSMA/CA channel access mechanism is used. Zigbee Zigbee Alliance