Sprint and Verizon use CDMA, so u can't use this phone. They may release a CDMA version of it eventually tho. Ur kind of phone has something like a Subscriber Identification Module card (SIM) but it's internal and can't be removed. It's how the network knows which phone is assigned to ur account.

I don't think Sprint PCS uses a GSM service. This means that your company doesn't come with a sim card. GSM company's here in California are T-Mobile, AT&T and Cingular. That's about it. So if you were to get a phone you want to use for Sprint I'd suggest a CDMA phone.

A Sim car is basically a card that is given by the phone service, such as ATT or Cingluar, it stores your phone number, and gives out a signal to your service provider. To be able to use the phone above, it must be unlocked so it can be used with any Sim card.

Is there any way possible for me to buy a Nokia 7600 from the UK and use it in the US under Sprint service. I heard of a sim card or something but dont really fully understand what it is. Any help would be GREATLY appreciated. Thanx