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3G w/ CellularOne(Dobson)by AT&T calling plan


Jun 2, 2008, 12:18 PM
Does anyone know if it is possible to get 3G service with an old CellularOne(Dobson) Data Plan? I am thinking of just popping my CellularOne SIM card in a 3G phone. Our area will be AT&T 3G very soon.


Jun 2, 2008, 4:10 PM
I don't think that it's possible. I believe that it's the AT&T SIM cards that are what make the phone able to find the UMTS/HSDPA signal. A Dobson SIM will have no idea what that even is or where to find it.

Apr 28, 2010, 11:24 AM
Just trolling around the old forums. You can use a Dobson SIM in a 3G phone and it will work fine. It just has to be unlocked. I kept my Dobson employe plan as long as i could, and had my SIM in a bunch of unlocked phones on 3G, including iPhone 3G which worked awesome.

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