No. Once you connect to the Lexus's bluetooth, you can't use voice dialing. If you want to dial, you either have to use the i touch dial on the NAV screen (difficult since it dims out the numbers when you are moving, plus you have to push at least two buttons/screens to get the speed dial screen) or you have to manually dial using the phone, which, besides being dangerous completely invalidates the whole reason to have bluetooth in the first place. If you want to really get the most out of a bluetooth phone, I wouldn't recommend the V710, even though at the moment, it's the only bluetooth phone Verizon offers.