This is a gateway, not an end node, it doesn’t have AT command support the way end nodes do, because it’s intended for the entirely different purpose of feeding raw packets to and from a LoRaWAN network server.
You would get status information from the gateway’s web page, that of whatever lorawan network server it were pointed at (on the device on in the cloud) or by sshing in and viewing system logs.
(And no, an expensive gateway can’t very well impersonate a cheap end node, nevermind that the software to do so doesn’t exist, the actual radio hardware would be at best a very awkward fit for that purpose - it’s designed to be a gateway only)