Here are the specs on that phone. If you dont have a HSCSD phone and you have ATT service it is worth a jump, or get it unlocked for other GSM carriers. Only thing that I have heard, and this was a while ago, that if ATT catches you buying a GoPhone / Prepaid Phone, and using it on a Contract (Postpaid) acct, they will block out the IMEI. Dont know if they still are doing this, but something to be aware of if your intent is to put it on ATT.