Get 3cx version

[Anton00]

Hello,
We are using Standard Annual License 15.5.20000.6
We are going to update our server to V18. It's written at https://www.3cx.com/community/threads/v15-5-to-v16-upgrade-procedure.75741/ that we need to be on 15.5 SP6 to make upgrade. However, I can't check whether SP6 is installed. How can I do it?
When I open License Settings I see the following error message:
Unable to reach 3CX License Activation Server. Confirm that your Primary DNS Server is able to resolve activation.3cx.com

 

[Charles_3CX]

Regarding your question about the version of the 15.5 system, your version is the latest version of 15.5 sp6 (15.5.20000.6). This version is installed with the latest hotfix containing the activation patch, which was valid up until the old activations servers, responsible for activating the older version of 3cx, were decommissioned. This version is now no longer able to activate as per multiple emails sent out to all license owners over the past months before the old activation servers were decommissioned and reminding customers to update their system.

 

[Anton00]

Will we keep the license if we install V16 or V18?

 

[Anton00]

I installed new V18 3CX server on premise and imported full back up. It shows Standard license and recordings are not available. How can we restore the license?

 

[Evolute IT]

I installed new V18 3CX server on premise and imported full back up. It shows Standard license and recordings are not available. How can we restore the license?

It did, you had Standard and now that it is upgraded, the features like call recording are disabled since it's not in Standard since v16.