Hello,
Similar problem to others I think. Landline is not working, no tone at all, just dead.
Phone icon was flashing red on V3 hub. Tried turning off and on again, red flashing light gone but no change to phone line, still dead.
Tried another phone in same socket, still dead. Tried other phone socket as well no good either.
Checked the service status online, no fault found. I left it a day and still says no issues on the line.
Internet is working without issue.
Can you check from your side and advise otherwise. I don't have a contract mobile phone so it would cost me quite a lot to wait on the helpline.