I think you are right, there is no beep to remind you of a missed call. However, when the phone is closed, you can hit the volume rocker and the external display will light up. From there, it can tell you that you missed a call.

I am not sure about the beep to remind you of a missed call. havent used the phone in a while. either that or I am mixing up the beep that motorola phones use for a missed call.

Good luck. Hope that somewhat helps..