Can't use the landline phone to make calls.
CAN receive calls.
Running a test from https://my.virginmedia.com/faults/service-status shows no faults, and no phone connected (with a note stating that some phones don't show up here).
Phone is plugged directly into the hub, always has been...
Fault started yesterday as far as we can tell.
Fixed it, just had to reboot the router... *facepalm*
Thanks for posting, and sorry to hear you had some issues with the line.
You'd be surprised how often a reboot helps! If you do need anything else please let us know 🙂