Notifications app?

[jcwilliams]

I am a manager at a retail store and I am looking for a way/app to silence all sounds except for incoming calls just in case of an emergency. Is there such a app or a setting shortcut to do this?
Thanks

 

[Lenagainster]

Silent Time Lite
You will have to enter the phone numbers that you want to allow to call through.

 

[takeshi]

Profiles apps will do this as well.