I have iPhone 4 on 5.0.1. It's jailbroken/unlocked for T-mobile with a Gevey. I was on Facetime with my girlfriend about an hour ago. We hung up like normal. I tried calling her back 10 min later and get nothing. We're both in the same room right now trying to figure out why facetime just stopped. Also, I noticed my APN setting have been mysteriously cleared out.