V18 to V20

[voip13]

Hello,

Can backups of the old versions of the V18 be restored in the V20 version?

Regards,

 

[CentrexJ]

yes as long as it has FQDN included and the license is current

 

[SteveITS]

@voip13 That's basically the Windows upgrade process. So I would add, it needs a system owner.
https://www.3cx.com/blog/releases/v20-upgrade-checklist-faq/

 

[TanSG]

Make sure your system owner email is unique. I learned this lesson the hard way