My home internet is still metered and charged as a DSL line (by Teksavvy), though I know my neighbourhood has fibre. (I watched it being laid.)

The line coming in is an RJ-11 cable that split between my home's internal phone wiring and the DSL modem. No telco-supplied UPS on anything.

I don't know whether my dumb phone is powered by the CO or an UPS in a neighbourhood Bell box.

I just know it's powered from outside the house, functioning the same way as it has for decades, and it has done well during extended power outages.