Only way to differentiate between a missed call and an accidental call is the number of times the phone rang i.e. one who really called would likely wait till the end of all rings and the one who dialled by accident would likely end the call as soon as it is found.
So, if the missed call alert shows the number of rings (or) the duration of the rings then it would be easier to asses whether someone really tried to call me or was it just an accidental call.
I think, this would be a useful feature to have and hence there is a need gap for such a feature.
to comment or vote on this problem
Need karma! Please check contributor guidelines.