Garmin zumo 550 GPS Receiver "pair set cellphone" Questions

cellphone. When connected to my V600 Motorola which is supported when I end the call the Zumo disconnects my phone. I have a motorola phone, and it's fine. I have paired the phone to the zumo, and the

...pair the cellphone with the GPS, but when trying to make a call, after I hear the ringing sound and somebody picking up the call, there is no more sound that comes out of the GPS speaker. I thought ...

...pair it with my Samsung BlackJack II smartphone (bluetooth visible turned on), it found the blackjack phone fine, but when connect, it doesn't make the passcode prompt appear on the cellphone, then ...