I just purchased the new Motorola DC600 Bluetooth adapter for my Motorola T720c phone. It's supposed to make the phone work with Bluetooth systems. I've gotten the Prius to establish the connection with the phone, so the car reports "Bluetooth connection successful." However, when I try to make a call, I immediately get one of two messages from the car: "Network Connection Dropped" or "Check Mobile Phone". I don't see any signs of activity from the phone, although the LEDs on the DC600 flash occassionally. Motorola seems completely uninterested in helping resolve the issue. Has anyone else had any experience with the DC600?