fibre phone service during power outage

dernalbert FuzzyLogic   When i had fiber installed  in 2017  i asked them for batt backup and got it. Make  sure you have a power plug available for both ont and batt and in my case the t3200m all in one location. I had all in place before asking for the fiber.  Telephone copper was right there to do the transfer. I knew batt was available but was it comon to offer it then ???  I have push button phones for backup in my basement and garage. Polecat