02-27-2014 07:09 PM - edited 03-19-2019 07:57 AM
Hi,
I am looking to migrate cucm 8.5.1 to 9.1.2 version. The question is whether I need to upgrade firmware for all Cisco IP Phones.
Please help to your advice!
Best regards,
Tan
02-27-2014 09:46 PM
Look at the CUCM SW compatibility matrix for the FW that comes with 9.X, then compare to what your phones currently have, and you'll have your answer.
Sent from Cisco Technical Support iPad App
03-26-2014 08:08 AM
Dear Tan,
corroborating Jaime, you are not likely going to need firmware upgrade.
HTH
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