Latest update - this issue is now resolved.
We're aware that some customers in the Wolvrerton, Newport Pagnell and Leighton Buzzard areas are having difficulties with their phone service. This is caused by a technical issue with some of our network equipment in Milton Keynes.
Our engineers are working hard to fix the issue and we'd like to apologise for any inconvenience caused. We don't yet have an estimate for when your service will return to normal, but we'll update this page with more information as soon as we have it.