Businessman on the phone

A young businessman had just started his business, and rented a beautiful office. Sitting there, he saw a man come into the outer office. Wishing to appear busy, the businessman picked up the phone and pretended that he had a big deal working. He threw huge figures around and made giant commitments.
Finally, he hung up and asked the visitor. "Can I help you?"
The man said, "Sure. I've come to install the phone."