Publishing houses that accept manuscripts directly from authors have guidelines for how to send work to them. You'll find those guidelines on their websites.
If you choose to submit to them, read the guidelines. Then follow them.
Don't call an editor to say you represent yourself.
Much like a lawyer who represents himself, you'll have a fool for a client.
You don't need tricks to get attention.
You need good writing.
And after good writing, you need to present clear and compelling evidence you are not a yahoo.