The Phone Call Whitelist is an app to assist you in the "Do not disturb" feature.
It helps you to easily list or delist contacts from the Whitelist.
A whitelist option will help you not miss important callers.
You can add one or more groups instantly to the Whitelist.
You can also set up the feature so that if a person calls you more than once, the phone will allow the call to come through.

★ EASY 1-2-3 OPERATION ★
> Open the app
> Tap the contact
> Close the app

So Easy!!!!

The built-in help explains in detail how the Do Not Disturb feature of iOS6 works and guides you to configure it on the device settings.

When iOS6's Do Not Disturb is ON, calls, alerts and notifications will be automatically muted and the screen won't light up.
Calls will be sent to voicemail automatically if they are not coming from a whitelisted number.

Note: Do Not Disturb must be enabled in settings and it works only when the device screen is locked. Read the guide for more information.