I got a used iPhone 4s from a friend, how do I activate FaceTime
So my friend gave me her old iPhone 4s, and I removed her Apple/iTunes account & added my own. Now I'm trying to use FaceTime & iMessage, but I can't activate them! In the settings it says "Waiting for activation" and I'm not sure how to activate it. The thing is, it still has my friend's old number, maybe that's the problem? I mean there's no service, but it still has that phone number in the settings of the phone and in FaceTime & iMessage.
iPhone 4S, iOS 8.3, Unlocked, used, previously activate