What would happen if I gave my Gma my iphone 3gs?

[rever3nce]

She is on a really old Cingular plan. only pays like $35 a month. I want her to use my old iphone 3gs as she has a super old flip phone with only 450 min and 5000 n&w min. I tried her old sim and it still works on the iphone (making calls) Would AT&T charge her the data feature and change her plan or can she just use it as a phone and have wifi for her "data" . She never goes out and about so she will never use the data plan anyways.

Thanks!

 

[Maury]

If her SIM works then you're good to go. I did the exact same thing with my old 3G, which my daughter now uses.

HOWEVER:

On the iPhone it's hard not to use cellular data by mistake. If she does use cellular data, the carriers will oh-so-nicely give you some bandwidth without warning. Then send you a huge bill for "pay as you go data". It's about 1 billion dollars per email.

So you need to make sure this is turned off.

In some iPhones/carriers, you can do this through Settings:

http://support.apple.com/kb/ht4203

If that setting does not appear, you can do it another way:

http://support.apple.com/kb/ht2283

In this case, simply change the APN -- add a couple of X's to the end of it or similar.