How to add prepaid ATT/T-Mobile Sim card?

Anyone know how prepaid SIMs work? Do they stop mid-call once you've reached your limit (preferable) or do they continue and charge you over?

 

As far as T-Mobile, you'll have to unlock it. And the 3G iPhone has not yet been unlocked.

I'm not sure if this would even work with AT&T, as the no-contract 3G iPhones are not yet available.

 

What about the actual iPhone? I mean, the original.

 

I don't believe this applies to the topic. See (underlined) OP:

The 2G iPhone has been unlocked and should fully support a prepaid SIM.

 

You need to UNLOCK to work on unsupported plans/carriers.

 

Well, I'm adding it to this topic so as to avoid starting a new thread. So how do prepaid SIMs work in general?

Only the first iPhone so far.

 

It can unlock the 2G iPhone if you want it to, but the 3G iPhone is currently unable to be unlocked.

Sorry, I wasn't sure what exactly you were getting at.

I'm not exactly sure how prepaid SIM cards work because I've never used one. But it only makes sense to me that once your money/texts/minutes are up, the phone won't be able to perform those functions. If you're in the middle of a call - your time is up, too bad.

However, this is only speculation on my part on what appears logical to me.

 

That's what I was thinking, and it sounds logical to me, too... thanks.

 

can I activate a prepaid sim card using the iphone or would I have to use an actual prepaid phone to activate

 

Pwnage doesn't yet, and the other is a sold version of the Dev Team's work.

 

Yeah, get the non-stolen, free version from the Dev Team's site.

 

No, they don't. Not the 3G iPhone.

The iClarified guide walks you right through it.