I hope this is the right place for this thread. If anybody else knows anything about this please fill me in. To my understanding AT&T recently enabled FaceTime over cellular for us with tiered data plans. I thought the idea though was that they didn't charge you data usage. As my router is crap and they just recently enabled LTE in Richmond, VA here I thought I would switch off the wifi to FaceTime my friend and initially it was fantastic as I wasn't dealing with any of the usual call troubles that I get with FaceTime or skype or whatever. But then I got the dreaded "you have used up 65% of your data plan" text and I thought WTF but I hung up and switched to wifi. Is AT&T charging data use for FaceTime on non share plans?