[wcihlu]

I was curious, if you go from an iPhone to a blackberry like many people has, whats da deal with da sim card? u gotta go to ur carrier and get a rep to get it out right?

[tate72]

No you can take it out yourself but they are 2 differant servers I think would be the term. You have to have them switch from the apple to the Blackberry.

[sniffs]

you can take your BB sim chip and put it in the iphone without issues.

if you take your iphone sim chip and put it in a bb, you wont get bb data.. you need to call the carrier and remove iphone data and add bb data.

[Duvi]

From my personal experience, switch the sim card.

I was having lots of failed calls (after the store rep told me I needed to use a new sim and didn't want to listen) and after changing my sim, no issues related to failed/dropped calls.

[EXPLiCiT dwK]

not unless both sim cards are from At&t you could just take it put and plug it in blackberry however like sniffs mentioned there is a data plan difference.