Do not disturb.

Denies incoming alerts, messages and FaceTime calls unless caller is on VIP list.

Incoming FaceTime calls and alerts are silenced.

http://www.apple.com/ios/whats-new/

iOS 6 adds new calling features to your iPhone. Now when you decline an incoming call, you can instantly reply with a text message or set a callback reminder. And when things are just too hectic, turn on Do Not Disturb and you won’t be bothered by anyone — except can’t-miss contacts like your boss or your better half.

Turn on Do Not Disturb to suppress all incoming calls and notifications. Enable it manually or schedule

a recurring time. Or allow calls from your favorites or specific contact groups.

marianfromspringwood wrote:

Thanks Guys. Update was easy, as usual

You're welcome. Went smoothly here as well.

But it does not silence my incoming calls. It only silences notification

My incoming calls are not being silenced either. What's up?