SilenceZone (http://itunes.com/apps/silencezone) is the app that will remind you to put your iphone without sound when it is not supposed to ring (for example in a meeting or in a class). All you have to do is to define "Silence Zones" and everything else is taken care for you. You'll be reminded to put your phone without sound anytime you get there, and you'll also be reminded to put the sound back on when you leave. For more information regarding the app, go to: http://itunes.com/apps/silencezone or www.silencezone.com
