I was shopping for new video equipment yesterday. I made an appointment and the sales people showed me a broken camera that they knew nothing about and just wanted my credit card.
Moral of the story: Be prepared, be present, know what you're talking about, call when you say you're going to call, be on time. Whether it's the voiceover industry or any industry, success shows up if a person is prepared. Success is what happens when people are constantly improving there skills, subject familiarity and their presentations to others. Successful communication is a major key to great service. Great service creates success.