Can you just swap sims from iPhone 4 to 4S (AT&T)

[jlmitnick]

So right now I have an iPhone 4 and won't be eligible to upgrade until November. My mother has no smartphone currently, but we've ordered an iPhone 4S and then we're going to combine and get on a family plan.

Question: When the 4S arrives, can I just swap the sim cards, and put my sim into the new 4S and give my mother my current iPhone 4? Will this somehow "re-up" MY contract at all, or will I retain my current November upgrade date and same contract end date?

She doesn't care about having my "old" 4 by the way

 

[martiansoldier]

The simple straight forward answer is YES!

 

[dontwalkhand]

Yes you should be able to, especially with the new PC Free setup.

 

[FreakinEurekan]

Yes, but she will need to add a data plan to her line. Not optional.

 

[dontwalkhand]

Yes, but she will need to add a data plan to her line. Not optional.

Get her on the 250MB Plan, which should be more than enough if she's always around Wi-Fi.

 

[TypeMRT]

Call AT&T before you put in your old SIM and activate the new iPhone. Tell the rep that you are doing a "cross upgrade" to make sure that your mom's line doesn't get a data plan added to it.
I went into an AT&T store on Friday to verify this because I'm in the same situation and this is what the sales rep and manager told me to do. Good luck!