Hi there @tobermory
Thanks for popping back to our Community - so sorry that you're having some further landline issues.
On checking your account I can see that you are currently impacted by a known area issue. This was raised earlier today under reference number F008996260. At the time of writing, the estimated fix time is 6pm today.
If you are still having issues once the area fault has resolved, we can go through further checks with you. Please do keep us posted on how things are looking your end and we can check for updates as and when needed.
I have registered the issue on your account for you also
Cheers