My iphone won't take calls, why?

I just got my iphone 4s for at&t today, called them, activated it. They did a test call. Which i received, however when i used my old phone, my home phone, and a friends phone my iphone doesn't receive a call. I'm wondering why this is so and whatdo i do? Also the phone that calls my new phone jus keeps ringing and ringig and rigig. Its annoying

IPhone auto brightness- how does it really work?

Once I unlock my 4s, the screen either gets brighter or darker, depending on lighting. Now, let's say my screen adjusted itself to a brighter setting in a bright room. Without turning off my phone, I move to a darker room. Now shouldn't the brightness automatically dim? Or is this how the feature works (adjusts only when device is unlocked)?

Does iphone 4s have sd slots?

I was thinking about getting an iphone 4s with just 16gb on it cause thats all i can afford and i was wondering does it have an sd slot on it for more storage

What photo editing app for iPhone?

There's this cool app that over saturates colors and has like a whitish outline of the main object? Do you know? Its not instagram or any other photo filter edit. I think you have to pay for it. It's like pic something? Anyway I really want to know.

How to transfer songs from my iphone to my computer?

I'm moving from my grandmas house (where my current computer and itunes are) to my dads house i made my own acctount on his home computer.both are pc's. It already has itunes downloaded but i want to get my music on to this computer i sighned into my itunes acc. And it didn't bring any of it up and i connected my iphone. How do i get my music on there? SIMPLIY please when it comes to computers i suck

Good condition iPhone 4 from ebay worth the purchase?

Used iPhone 4, has a minor scratch on screen, a few scratches on back, but also comes with apple care, for $280. Good deal? The other is a mint condition one with no scrathes, but is $300 and does not include apple care