is there any way to increase the bluetooth range from linux command ?

i always got disconnected when i use bluetooth in the car. So now i will need to bring 2nd phone an switch sim card if i have a conf call *sigh, this is very inconvinience*.

I am using Motorola T505 and this bluetooth works fine with Nokia E90 an Nokia 5800.

With Nokia N900, its connected after few minutes it will be disconnected.