There is no way to interconnect two or more Zigbee networks and Zigbee devices on two Zigbee networks (.i.e. two different Zigbee gateways) have no knowledge or interaction that any Zigbee devices that are not on the same Zigbee network exist.
There is no way to interconnect two or more Zigbee networks and Zigbee devices on two Zigbee networks (.i.e. two different Zigbee gateways) have no knowledge or interaction that any Zigbee devices that are not on the same Zigbee network exist.