Once i pair my 7130e with my BMW bluetooth and place or receive a call, the volume on the handset is disabled (this may be normal).

The problem is when I leave the car and the phone is no longer paired with the car, when I place a new call, the volume adjustment on the handset is still disabled! The only way to correct this is to remove the battery from the 7130e.

Anyone else experience this problem?

Thanks!