I am simple:
At Work - This is Suzie
On Cell - This is Suzie
At home - Hello?
I hate hearing my home phone ring. Of course, if I know who it is, I usually answer "Billy Bob's Billard's, we rack your balls" or some such nonsense.
Or, if it is someone that I want to make uncomfortable (like my boss who is very straight), because I live for that shit, I say, "Gregory, darling, how are you?" in my sweetest voice.