Well I received payment smile All of the park buttons were programed on the same key of all phones. To Park a call the user pushes the park key and dials their park bin number, to retreive the call they pick up their handset push the park key and dial their park bin number. To keep things simple everyone was assigned the park bin that matched the last two digits of their ext number. ie station 112 uses bin 12 so they won't have to worry about finding an empty bin or try to rember where they parked someone. I shortened the recall timer from 2 min to 1.5 min. that seems to help if they lose a call in park at least it recalls back to them.