If you haven't gotten rid of your landline yet or if you're thinking about getting rid of you landline in the coming year or so, if it hasn't begun already, AT&T will not be offering landline service any more. Service will be provided through a modem. I was told this by one of their technicians who came out to service our landline and was asked if we wanted to switch. His explanation was very technical but apparently there will be something inside the phone lines that will talk to the modem, if there is a problem with your phone it can be traced and repaired remotely. Anyone who decides to keep their landline as is will continue to receive the same service that won't change. The tech had to reset our modem so that our phone would ring he couldn't explain why that happened but did say that our calls were being routed through the modem and not the landline.