Dialer from lockscreen

What is needed to access a phone dialer from the lock screen, without unlocking?

Resultant dialer app wouldn't show Contacts, just be able to dial phone numbers directly.

I love being able to sync calendars and play games and all that, but really this thing is (supposed to be) a phone first. Unlocking, opening a dialer, searching contacts, and then making a call is such a pain compared to my old "dumb" flip phone.

Non-root method preferred, but if that's the only way to go it'll have to do.