AT&T’s attempt to regulate which data plans could use FaceTime Over Cellular got them in a lot of hot water due to net neutrality laws — which state that data shouldn’t be discriminated against based on its source. Now, AT&T has caved to public demand and will allow all users to use FaceTime over Cellular (assuming you have a tiered data plane).
As a result of ongoing testing, we’re announcing AT&T will enable FaceTime over Cellular at no extra charge for customers with any tiered data plan using a compatible iOS device.
This means iPhone 4S customers with tiered plans will be able to make FaceTime calls over the AT&T cellular network. AT&T previously made FaceTime over Cellular available to customers with a Mobile Share plan and those with an LTE device on tiered plans.
So anyone with a grandfathered unlimited plan is out of luck (there are still a handful of you, right?) Some people are less than impressed with AT&T’s response, since it still violates the spirit of net neutrality by limiting who can use the service — it just limits fewer now.