Hi @pmj101 thanks for your post although I'm really sorry to hear that your landline isn't working at the moment.
I've had a check of things for you and it appears that there is an outage affecting services in your area so please accept my apologies for this.
Unfortunately, we don't have an estimated fix time on this issue at the moment but we are aware of this, so please be assured we'll get this fixed for you as soon as possible.
For any further updates, please see here.
Many thanks
Tom_W