Ok so I have an iphone 4 on 4.3.3 with ATT and it is not working. I turn it on and nothing happens. No waiting activation or anything. After a few minutes I get "Activation unsuccessful. Turn on FaceTime to try again." I tried everything! I reset my network, restarted/respringed my phone, turned wifi on and off, and I even tried opening the ports on my firewall to see if that was the problem. Facetime used to work fine for me and I just noticed it recently when a friend tried to facetime me and it didn't work. Any help appreciated thanks!