Switch to AT&T, buy a new iPhone, and get a second one free by adding a second line

Beginning today, new and existing AT&T customers can purchase a new iPhone and get another one free when adding a second line.

Both phones must be purchased on AT&T Next, the company’s installment plan. The first phone can be a new line or an upgrade. The second phone must be a new line and purchased on AT&T Next 24.

You can add both phones to a qualified plan, like Mobile Share Value, for as low as $70 a month for two phones. After three billing cycles or less, you’ll start to receive up to $650 spread out over 30 monthly bill credits. You do have to pay tax on both phones at sale. For more info, go to one of AT&T’s retail stores.