Welcome to the Community, I'm very sorry to learn about the problems you're experiencing with your telephone service.
I've been able to locate your account to take a closer look at this and run some tests on the line. We're seeing some issues in your local area which is causing these issues (reference F004892650). We're expecting this issue to be resolved before the end of the day so if you're still experiencing issues after that, get in touch and I'll take another look at this for you right away.
Apologies again for the inconvenience caused, we'd love to hear from you.
Thanks for the response Steve, I'm really sorry that your line still isn't working as it should.
I've re-run my tests this morning and can see the outage has extended it's estimated resolve time to today at 4PM. The team are currently on-site and working hard to get this resolved as soon as possible though so you might find it start working before then.
If your line is still the same after that, get in touch and I'll take another look for you right away. Apologies again for the inconvenience you're experiencing with your phone line.