Solved Upgrading 3cx 12.0 to 15

[Joe Schmitz]

1.) If upgrading from 12.0, do I have to go to 14 first, or do I have to upgrade to 12.5, then 14, then 15

2.) I have 4 3cx servers all interconnected. If all of them are on 12.0, do I have to upgrade each one incrementally (12.0 to 12.5 to 14 to 15) or can I update one server just to 15 before starting another?

3.) I have licenses for 12.0. Does that license carry over to the newer versions of 3cx?

Edit: I may have misspoke, I have 12.5 installed on all of the VOIP servers.

 

[leejor]

Using the logic in this post...

https://www.3cx.com/community/threads/3cx-v15-upgrade-from-v12.45700/

Going from 12.5 to 15 should be OK.

My understanding, when you have various 3CX PBX's using bridge trunks, is that some (advanced) features may not work correctly when at different releases. Regular calling should work as it is simply based on digits sent and received..


https://www.3cx.com/community/threads/3cx-v15-upgrade-from-v12.45700/

 

[CentrexJ]

Leejor is correct. The bridge should work but some of the advanced features (presense, etc) will not work with dissimilar versions. Also I believe this isn't officially supported to bridge between different versions and since it is bridging with a system two major versions old it will be worse. As to the license question as long as the licenses have "maintenance" that isn't expired they will go from v12.5 to v15 with no issues. Make sure the 12.5's have the latest service pack installed before running their backup and uninstall.

 

[cobaltit]

Here is the actual documentation on this:

https://www.3cx.com/docs/manual/configuration-tool/

At the bottom you will see this:

• From v9 and v10 you must upgrade to v11 SP 4a first, then to v12 SP 6.1
• From v12 SP 6.1 you must go to v12.5 first.
• From v12.5, to retain call logs, you must go to v14 first, or without call logs directly to v15.
• From v14 you can go to v15 directly.
• Backups from previous versions can only be restored during the installation of the pbx.

 

[YiannisH_3CX]

Regarding licensing you need to have active maintenance to be able to upgrade from one version to the next. Once you do license keys will upgrade automatically as you go up the versions.

 

[Joe Schmitz]

Thank you very much everyone for answering my question! Very helpful.