Hi, I’m thinking about using the upcoming buy one iPhone X get $699 off a second iPhone to essentially get a free iPhone 8 for my girlfriend. The problem? She’s on AT&T and right now it doesn’t seem like her parents want her to switch. I understand that Verizon doesn’t “lock” their phones like other carriers but what exactly does that mean? For example, if I gift her the iPhone 8, can she take it to AT&T and add it to her parent’s plan? Or does she need to sign up for Verizon? (In which case, I’d probably hold off on the deal.)