Two things: 1)The "calling" telephone number disappeared and "no data" is now being displayed - hoping a manual will help me figure this out.. 2) Every once in a while when you answer the phone, you cannot hear the caller although they can hear you. We have found that when you hit the "speaker" button (on the base station only), it will allow you to hear the caller again and you then have to hit the "end" button (only on the base station) to turn off the speaker. It will then continue to work normally until it happens again. Looking for some kind of fix for this very irrating characteristic.