fibre phone service during power outage

NFtoBC  I have thought about a ups. My ont is backed up by a telus batt backup because i have telephone on fiber. I am thinking a smaller ups could run the 3200m and give us access to the internet during outages. Retired power linemen i have a generator but would not trust it to deliver a constant 60 hrz.  We seem to get a couple of 24 to 36 hour outages a year now always tree related. We have disabilitys and with the virous would be easier to text and mail friends during outages  A small ups would allow the 3200 to give us wifi correct. Polecat