BlueTooth Problem in Palm Pre?

I have a 2008 infiniti G37 which connects via bluetooth to cell phones.
When I connect the Palm Pre the connection setup process works fine but when a call is received the incoming voice drops out continuously during the entire call.
It's confusing, what could be the cause of the problem?

I'm having the same problem, the call quality is really disappointing.
I tried my friends Pre, but no luck. I think is the OS.