Trying to use old Xfinity Home door sensors

I used to have Xfinity Home set up. I’m trying to repurpose their old sensors and using them using the Ezlo Plus gateway. The gateway looks to see them trying to pair, but it never completes the pairing process. The following is the logs from the gateway from the zigbee daemon. I cannot find any details on the brand or model, but research on the internet makes me think it’s a Visonic brand, possibly the MCT-320. Anyone have any advice?

Ezsp Policy: set Trust Center Policy to "Allow preconfigured key joins":Success: set
pJoin for 180 sec: 0x00
NWK Creator Security: Open network: 0x00
ezspChildJoinHandler: 0 - 1 - 31134 - 4 
Trust Center Join Handler: status = UNsecured join, decision = use preconfigured key (00), shortid 0x799E
799E:  
new device line 645
799E E2 9E 79 80 59 0B 03 00 6F 0D 00 80 

T00000000:RX len 5, ep 01, clus 0x0500 (IAS Zone) mfgId 10A0 FC 14 seq 62 cmd 01 payload[]
emberAfReadAttributesResponseCallback(): 31134 / 0x799e, ep: 1 -> 1, cls: 1280 / 0x0500
ezspChildJoinHandler: 0 - 0 - 31134 - 4 
2022-01-17 09:18:52.954410 ERROR: Try to delete node during its inclusion, node_id: 31134
Trust Center Join Handler: status = device left, decision = no action (03), shortid 0x799E
ezspChildJoinHandler: 0 - 1 - 31134 - 4 
Trust Center Join Handler: status = UNsecured join, decision = use preconfigured key (00), shortid 0x799E
799E:  
new device line 645
799E E3 9E 79 80 59 0B 03 00 6F 0D 00 80 

Related thread on the Home Assistant forum, they were wondering if these devices are actually Zigbee HA1.2 or 3.0 compliant ?

Just noticed looking for something else, that the Xfinity Security MCT-350 Door and Window Sensor is listed on the official supported Zigbee device list here, but not the MCT-320

Guess the installer was mistaken when he said they were Zigbee. Guess I’m buying new sensors

They might well be Zigbee, but not all “Zigbee” is equal. In the early days of Zigbee devices, different manufacturers were pretty much doing their own thing and there was no real unified standard or Zigbee protocol stack.