Is it illegal to answer the phone with a business name that isn't yours?

I get a lot of spam calls. Usually I don’t answer if I don’t recognize the incoming number on caller ID. (Two in the last half hour!).

What’s the legality / illegality if I answer the calls with something I other than “hello” or my name?

Would any of these be illegal?

- Trump Campaign Headquartrers
– K-Mart Receiving
– <name of city> Police Department
– Internal Revenue Service Fraud Division

and so on.

Obviously I am none of the four entities named above. Is there some legal reason NOT to answer falsely?

(Chances are that they are going to hang up anyway).