Hi Hotrocks,
Welcome to the Community and thank you for posting.
I am very sorry to hear you are experiencing issues with your landline service.
I have taken a look from our side and can see there is a known issue in your are and our team are working to get it resolved.
The current estimated fix for this is the 30th January 12:20pm.
Our apologies for any inconvenience caused and thank you for your patience.
Nat