My wife and I both have Motorola 323i phones, and both have the same issue. We can be sitting right in front of the phone. It beeps indicating a missed call...but never rang. When we check, there is a missed call. I have mine on 'vibrate and ring' and it does neither, but indicates that we missed a call. They don't do it every time, but often enough to be annoying. Anybody else have the problem, and how did you solve it?