my car has the new bluetooth phone. its really useful if u use your phone a lot in the car and u cant even see the phone system. Its internal so whenever you're within about 30 ft from the car your cell phone (if its bluetooth) works w/ the car also so if u get a call on your cell, it turns down the music in your car and rings in your car. i think it works the same as the other phone (didn't have the old phone) except it has no wires/cables or phone holder...its internal using bluetooth signals. but if your cell has no service, then obviously the car phone wil lhave no service.