I am working on setting up a HA configuration across sites. Site A and B will be using the backup/restore module via SSH to keep the two in sync daily. Each site is physically located at different locations and both will have different trunks so that if site A goes down we can manually change the phone numbers (on the provider side) to site B which will have different trunks.
The outbound routes I suppose also need to be avoided.
After looking at some other posts
Seems like I might be running into a similar issue?