I have to comment on my own review. I just received my Sprint bill for the month of November. To my amazement, we have 373 minutes added onto our bill, all incoming, and all listed as unavailable. The best part, we do not answer calls that do not list the phone number on our cell phones. I have Sprint looking into the calls. I contacted the FCC and I most likely will have to contact the police concerning this issue. Don't ever take for granted your cell phone bills are accurate, esp. if you have Sprint/Nextel. And remember, even when your phone is turned off, your bill will show incoming and outgoing calls. Be careful and check your bills.