I can't make any calls
Try these steps - they might fix it:
Is your phone working?
If your phone usually makes noises when you key numbers in, check you can hear them. If you can't, there might be a problem with the keypad. The best way to check if your phone is working is to try plugging a different phone in, ideally a basic corded phone.
Is your telephone or cordless base connected to your telephone socket securely?
Make sure it hasn't come loose.
Do you have broadband and a standard telephone socket?
Make sure you’ve got a microfilter connected to every telephone socket you actively use. This will reduce noise interference on your line. You don't need microfilters if you've got a pre-filtered socket but you will if you have a standard one:

Is any other equipment interfering with your line?
Unplug everything, including any filters and test plugging just one phone directly into the telephone master socket – it's usually the one where your phone line enters your property.
Still not working?
Try your test socket, this will help eliminate if there is an issue with your internal wiring.
You can watch one of the videos below if you need help:
If your phone works, it means your line is okay. The fault is probably with your internal wiring or the socket front plate.
Would you like one of our engineers to fix your internal wiring?
We charge a £50 call-out fee for the first hour and basic materials – and £45 for every hour after this. There's a £50 charge if you miss your appointment.
If you're still having issues or need help you can
.