1. it was latest v16We might need a bit more information regarding the process to get a better understanding of what's going on:
1. What exact version of 3CX was the backup you are using taken form?
2. Is this new instance an on-prem machine?
3. How did you deploy the new machine, was it using the 3CX ISO?
4. Are you restoring the backup during installation or after the 3CX Installation has been completed?
5. You say this happens on SIP Trunks, do you mean that the backup is restored successfully without errors and that you get the error when you click on the "SIP Trunks" section in the Management Console?
6. You mention getting errors on starting services, are you saying not all services start up after the installation?
7. Does the new instance have enough resources? I'd make sure it's compliant with our hardware requirements and especially check the drive capacity.
That is very likely. Try restoring it on supported hardware or a tested virtualization platform or Hosting Provider and see how it goes.my guess:
Strato is not KVM compatible and using "bad" hardware virtualization.
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.