Nope, the ONT (Optical Network Terminal) that Verizon FIOS installed has a backup battery, but once that's exhausted it goes dark like the rest of the house. T

Nope, the ONT (Optical Network Terminal) that Verizon FIOS installed has a backup battery, but once that's exhausted it goes dark like the rest of the house. They also removed the copper line during installation, it seems like Verizon at least doesn't want to keep supporting their copper network where FIOS is deployed.