I have used the Telstra Nokia 6233 and are currently using the Telstra HTC Touch Dual 850.

Both phones work well with my BMW Bluetooth ULF which I installed in 2007.

I can control the phones from the dash or the steering wheel buttons, contacts come up on the Nav display, however I can't get sms messages to display on the nav screen which is not really a problem.

Snap in adapters are available for the 6233.

I asked the guy at JB HiFi if I could try the phone in the car before I bought the HTC and he come out and tested it with me and it worked fine.

I have tried a Samsung phone which didn't work.