SoundFire

This program notifies you when you have a missed call by firing a notification sound at regular intervals.

If you have been out of the room for a couple of minutes and you have left your phone inside, when you go back you no longer need to turn your phone on just to check if someone has called in the meanwhile. You can be sure that SoundFire will notify you that you have missed a call.

You can also turn on notifications for sms, or battery low.

Do not miss a call or sms ever again.