Thanks for your post @CPax, and I'm sorry to hear of the issues with the landline services.
Looking into the local area, it appears that an outage is currently present and is estimated to be fixed at 18:00 today.
Sorry for the inconvenience this may cause you.
Please report back to us after this time frame and if the issue is still ongoing, we'll look further into this for you.
Kindest regards,
David_Bn