I have Nextel service through work.  They gave us very cheap phones.  I bought what I thought to be a Nextel 8330 curve so I could just insert my sim card and use it as a phone and I thought wi-fi to check e-mail.  It's a Sprint phone with no sim card.  What can I do.  Some of the employee's have sprint service for better coverage near there home.  Is there anyway to use the phone or is it going to have to be sold.  Thanks,  Strats