I am trying to create a complete backup server from our main server.
I have first cloned the disk (using Clonezilla), I put that disk in another sever with identical hardware. I booted, activated the installation. I even bought another licence of the Sangoma Endpoint module so that the restore has no obvious reason to fail.
The main and backup servers have the same hardware, same IP (I never put both online at the same time).
I ran a backup on the main server and I used that file to run a restore on the backup server. The restore was successful. In the log, I can see that the trunk server is Reachable. However, the incoming calls dont work. They do not seem to reach the server at all.
On the other hand, after I reboot a phone, I can do an outbound call from that phone.
Question: what is the suggested procedure to prepare a backup server ? I dont care if I need to start over using another method but I need to get the backup server working and I need to be able to backup my main server regularly , restore on the backup server and have everything working fine.
Any idea of why what I did does not work ?