Phone Notifier - Reborn (com.ryosoftware.phonenotifier2) on Google Play
This application extends the OS notifications with repeat reminders for missed calls and new messages (SMS/MMS).The amazing of this application is that you can configure the sound, repeat interval, repeats count, vibration and led color.Also, you can set the instant of the remind ends (via a max number of repeats or when no more missed calls or unread messages).