I had a licensing overage I couldn’t explain, so I asked AI to investigate.

I was looking at licensing numbers on a CUCM cluster last week and something didn't add up.

More device licenses consumed than users who should have them. Not a huge gap — but enough to make me dig.

So I asked Claude Code to check every phone's Owner User ID field against who actually controls the device — the controlled-device association in CUCM.

A minute later it came back with 13 mismatches.

10 phones had a blank Owner User ID. A real user still had the device listed as their controlled device, but the owner field was just… empty.

3 more had their previous owners still listed — people who'd left the company. The phones had been reassigned, someone updated the controlled device list, but nobody went back and changed the Owner User ID.

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