International version on AT&T. Data plan help???

[MattMJB0188]

So I want to use international galaxy S III AT&T and I was wondering what Data plan would work? I currently have an iPhone 4S and I'm using the old unlimited smartphone data plan. My data plan shows up as data unlimited for iPhone 4S. I also have a MicroSim card, so would this data plan be compatible with the international galaxy S3? Or do I have to call AT&T and have them change the data plan? I'd rather keep the unlimited data if I can. Technically, both devices use HSPA+.

 

[nelonez]

So I want to use international galaxy S III AT&T and I was wondering what Data plan would work? I currently have an iPhone 4S and I'm using the old unlimited smartphone data plan. My data plan shows up as data unlimited for iPhone 4S. I also have a MicroSim card, so would this data plan be compatible with the international galaxy S3? Or do I have to call AT&T and have them change the data plan? I'd rather keep the unlimited data if I can. Technically, both devices use HSPA+.

Based on my experience, u can just swap between the two phones without any issues.... if u call AT&T they will most likely want to change your IMEI number and your data plan.... I would say try it out for a few days and see how it goes....

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[zhingket]

I have the international S3 since 1st week of june i came from S2 but before that i had an iphone 4 and i still have the original unlimited data plan, i dont have to do anything to make the data plan work on my S3, i just went to att to ask for a micro sim

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[NickLippert]

I had an unlimited blackberry plan before I got my S3 and they swapped it over to an unlimited generic plan. You shouldn't have any trouble doing it.

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[funkylogik]

im guessin you would be best to just not tell att anythin mate. think i read somewhere that theres a separate special plan for the iphone so dont rock the boat