i just encountered this today, not really an expert with norstar. when i did a button inquiry, feat*0 on one of the buttons of a M7324 set it did not say anything it did not even say that it sa blank button to say that there is nothing programmed on it. two of the buttons would do that while the rest would say what feat is there. do anyone of you guys experienced this before? could it be that phone's button is defective but i am able to press it, but nothing happens.