Hello,
We recently upgraded from CUCM 9.1 to 12.5 via 10.5.
Since the upgrade, I have a device pool containing all 7940 handsets which now appear to be grabbing SIP firmware. If I delete their CUCM entry to let them autoregister as SIP phones, they fail to register but then redownload their SCCP firmware.
We haven't made any changes regarding firmware. Immediately after the upgrade all ~80 phones in the device pool grabbed the SIP firmware. They've all been moved by to SCCP but I'm still seeing the odd phone exhibit this behaviour.
Can anyone speculate as to why this might be happening? I don't have any 7940s in any other device pools so I'm unsure if this is related to the device pool or the phone model.
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