why doesn't facetime on iphone 4 work without wifi with straight talk?

This article suggests they support it: iPhone: Wireless carrier support and features. You should ask Straight Talk.

FaceTime over cellular is supported on iPhone 4S and later, not iPhone 4.

THats not completely true. I usof my iPhone 4 over straight talk cellular often in April 2014. Worked perfectly. Now it won't let me.

tkm627 wrote:

THats not completely true. I usof my iPhone 4 over straight talk cellular often in April 2014. Worked perfectly. Now it won't let me.

It's true now.

Hardware requirements of the iphone 4 do not meet the specifications needed for FaceTime over cellular data.

4S and up do not require wifi for FaceTime.

this is exactly as intended.

Great, did you read the whole thread?

Are you telling me this?