alltel cell circle phone

How can you tell if you have an unlocked cellular phone? First you must determine if your cell phone is GSM or CDMA. If your cell phone uses a sim card then it is GSM. U.S. GSM carriers are Cingular and T Mobile, for example. CDMA carriers are Verizon Wireless, US Cellular, Alltel, Qwest and Sprint PCS. Both types of cell phone can be locked and unlocked, but only the GSM phones can be easily switched from carrier to carrier.

Don't wait on this -- you can literally be making money this afternoon. CLICK HERE

The features of the KRZR depend largely on what carrier you have. Currently, the KRZR is out for Sprint, Verizon, Cingular, Alltel and U.S. Cellular, with a KRZR for T-Mobile supposedly coming soon. Because the features vary by carrier, you may want to do a little research before deciding if the KRZR is right for you (if a 2.0 MP camera is important to you, for example, it should be noted that the Cingular model is the only KRZR that has one -- the others check in at 1.3 MP).