Hello Cliffordburke
Really sorry to hear of the landline issues, it's not the level of service we aim to provide. Thanks for taking the time to raise this via the forums and welcome back to the community.
From looking at your account I can confirm there is current an area issues effecting landlines, the team are aware of this and currently working hard to fully resolve this as quickly possible. It is raised under reference F009051010 with an estimated fix 4.50pm today.
Rob