When I use the voice system to access the phone contacts (using the command "Dial > Phone Contact") I get a message saying "Not available at this time". Can's see anything in the manual which explains why this might be the case. All of the contacts are available to dial using the manual (i.e. buttons) system, which I find a bit clumsy and not something I would try while driving, so getting the voice activation working is important. Anyone have an idea???