You're the one in the wrong here. Back when everyone had house phones, they didn't answer them with their names. You just answered - "hello?" - because whoever was calling knew you. History is on my side.
As for the situation of a miss-dial, I kind of enjoy those so it doesn't bother me to have the back/forth investigation. Sometimes they're funny, and it's no skin off my back to have to do that.
If you're the one making the call and hoping the correct person answers, when they say hello you can just say, "Hi, this is ITC calling with Vandalay Industries. May I speak with George Costanza, please?" and then if George answered his own phone, he'd just say "This is he." and you move along. BECAUSE THAT'S HOW PHONE CALLS WORK.