When my blackberry 8600 is inside the holster, how can i accept call without pulling it out? I want to speak hands free with the equipment inside the holster.
while driving, if it has to be pulled out , activated and then talk; its a real inconvenience.

Is there a setting for that?

I use my Blackberry 8820 all the time both with my Lexus Bluetooth and BT headsets while in the holster.

I use my 8830 holstered with BT head set all of the time -- probably 95% of all calls.

Is there a button on your headset? If so, try pushing it when you get an incoming call.