Do we can use CUCM 12X flex license for CUCM 14 version?

[WajidPurayil54221]

We are planning to upgrade the CUCM version. client purchased CUCM 12X flex license. I need to confirm whether we can use the 12X flex license to CUCM 14 version.

[Nithin Eluvathingal]

Flex Licenses are agnostic, which means you can use them with CUCM 14, 15, and, if CUCM 16 becomes available, you can upgrade seamlessly as long as you have a valid subscription.

I took the following picture from my Smart account, where you can observe that specific versions are Not mentioned for the licenses . If a version is specified, you’ll need to apply for an upgrade license through the MCE portal or reach out to Licensing TAC

[Jonathan Schulenberg]

This is only true if the Flex subscription was ordered or modified recently. Older subs had version-locked licenses generated in CSSM. Check the licenses provisioned in the  Virtual Account. If they are version agnostic there won’t be a version number at the end of their name.

[Nithin Eluvathingal]

Thank you, @Jonathan Schulenberg. In my experience, I’ve never encountered a flex with the version specified in the SA on which I worked, likely because they were recently ordered.

[WajidPurayil54221]

Hello @Nithin Eluvathingal , 
Please find the Part number given below, May I know, are we good to proceed with upgradation with same license (12.5 to 14)?

A-FLEX-P-UCM-12X

[Nithin Eluvathingal]

I believe the part number might be version-specific, as Jonathan Schulenberg mentioned. To verify this, you should check it on Smart Account. If it’s version-agnostic, you won’t see the version mentioned on the licenses, as shown in my screenshot in the previous post.

Regarding compatibility, 14SU and UCCX 12.5 are indeed compatible. However, I recommend following the CSR compatibility guide and opting for the recommended versions. Additionally, make sure to consult the following resources:

1. Installation and upgrade guides
2. Release notes
3. Read-me guides
4. Compatibility matrices
5. Compatibility matrix for VMware
6. Compatibility matrix for CIMC

These resources will provide comprehensive information to guide your decisions.

https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/uc_system/unified/communications/system/Compatibility/CSR-Compatibility-Matrix-InteractiveHTML.html

[WajidPurayil54221]

Hello @Nithin Eluvathingal 

I can see the license is version specific. advised the client to raise a case with cisco tac for the confirmation.

[Nithin Eluvathingal]

One more thing, does it display the version for the licenses consumed/used, or is it showing the version for the licenses themselves? Because the usage will always show version 12.

This isn't a standard support case with TAC; you should open a licensing case instead.Request them to confirm if the licenses are compatible with version 14.

[Roger Kallberg]

We don't have any v12 systems anymore, so can't comment on the part where you state "usage will always show version 12", we do however run a mix of v14 and v15 systems and there are no version(s) shown for our usage.

[Roger Kallberg]

If you share a screenshot of the license page of your virtual account in smart licensing we can tell you if you have version agnostic licenses or not.

[WajidPurayil54221]

Hello @Roger Kallberg 

I can see the license is version specific. advised to the client, raise a case with cisco tac for the confirmation.

[WajidPurayil54221]

If i am upgrading directly to CUCM 14 SU2 version will impact with UCCX 12.5 SU2 version?