I am interested in upgrading to an N73 but I want to confirm something. With my 6600, if I leave the phone on my desk and go away for an hour and receive some (missed) calls during this time, then when I return I can see "n missed calls" on the display without having to press any buttons. Please would someone say if the N73 does the same or does the display go completely blank and stay blank until a key is pressed?