How do phone upgrades work for AT&T?

I'm in an At&t family plan with my friend, and there are like 6 months left in the contract... and my phone just died yesterday, idk what happened... I need a phone before tomorrow, but idk what to do... i want to stay in the contract but i dont...

So i broke my last phone and my next cell phone upgrades in may so i was wondering how they work, do you get the phone free if you sign nother three year contract.. or do you pay for the phone but its just cheaper and keep the contract you havve

I'm used to pre paid phones this is my first contract and I have a Droid Incredible I want to upgrade to a Droid Incredible 2. How do upgrades work? You don't just trade in the old for the new lol what do you pay or what determines how much you pay?...

I've just been offered 2 upgrades on my Orange mobile phone account, and I can have any phone in their product range for no cost, from the basic Nokias, to their Blackberrys. Although I like gadgets, I dont need a full blackberry because I have one from...

I know that in order for an ATT phone to work for T-Mobile or another GSM carrier that it needs to be unlocked. But, does an ATT phone have to be unlocked to work for an ATT account?

It's 2010 and I still don't understand how cell phones work. Can you avoid long distance charges by using prepaid cell phone cards? Simpleton details within. I have a cell that I use infrequently by putting $10 on it whenever I need to. I'm with a company...