well i aint much of a deer hunter(prefer chasing turkeys)
but i do go deer hunting too
i have always been told that when comes to deer calls
start soft and low,if there something close you dont want to scare them with a loud grunt right away
then wait and listen,and dont over call,if no response or nothing in sight,call little louder the next time.and once again
wait and listen
but you may want to wait for one of the real deer hunters for advise