No, i don't think so but i can give you a few details.
There are two main companies that offer GSM service in the USA. AT&T and Cingular are now merged into one company, and the second company is T-Mobile.
If your service is with, eg, Sprint, Nextel, Verizon, Alltel or just about any other US wireless company, then you have CDMA service, and this is the right auction for you.
If your Env is a World phone, it could be either case (most likely CDMA). Pls check the manual.
hi! did you have a reply for this question? i have the same problem as you do. thanx