My iPhone 5 says it's disabled now to incorrect password?

My little sister put a password on my iPhone and then she couldn't remember the password and now my iPhone says it is disabled and I can slide for an emergency call. I have a few possible passwords I can try.

How to I get to a different screen? I can't seem to restart my iPhone. AND I do NOT want to reset; this is a business phone.

The apple site isn't that helpful;

Apple will not release a way to get into your iPhone the passcodes would become useless. Your only bet is to reset it. There's honestly not a single thing you can do. Try simple passwords but most likely you need to restart it.