I'd really like to start off by welcoming you to our forums, and say that I'm really sorry to hear that you're experiencing a loss of service on your phone line at the moment. I'd really like to help you out.
I've run some testing on your phone line, and can see no reason why you should be experiencing this issue at the moment, so I'd now have to ask if you've been able to try another phone on the line, or if that's not possible, if you've been able to try your phone on a known working line - This would be to eliminate the phone from being at fault.
If you've been able to do this then the next step would be to book a technician to call out and investigate further. I'll send you a private message in order to speed things up once you've been able to confirm that the phone's been eliminated. Please look to the top right of this page where you'll see a purple envelope icon, click on this and you'll see my message.