I have had no dial tone on my landline since it was installed. Tried a new phone and it's the same so I know it's not my phone. I have no idea of my phone number as the engineer didn't tell me so I can't even ring it to see if it works!
Thanks for posting and I'm sorry to learn about your landline.
What I would like to do next is to arrange for a technician to take a closer look so I'm just going to pop you a private message with appointment times which you will find if you click on the purple envelope at the top right of the screen.