As I understand it, no. Previously analogue phone service and VDSL worked perfectly fine over the copper pair, however the changeover means a SOTAP line is analogue only and no longer supports VDSL.

A SOTAP line should work through a local power cut (reminder: check ours next time), it is a "transitional product" though for longer timescales it'll have to be something else (SPOT as a satellite service springs to mind, but as a cost).

https://www.findmespot.com/en-gb