Nice easy one for you all !

[Coneyhurst Blue]

I want to buy a Sat Nav with the ablity to bluetooth to a mobile phone.
Sat Nav to cover Europe for occasional trips.
Does the Sat Nav have to be going to a destination to enable bluetooth or can it just be 'on' in the car allowing calls handsfree whilst driving ?
What say you all powerful ones ?

[Coneyhurst Blue]

Cheers Five, was looking at the 730.
Any views on this one, does it loose the Sat, what is the bluetooth like for making and receiving calls ?
All help gratefully received !!