Your telephone manner can mean the difference between just getting by in your business or being truly successful in all aspects of your life. In the course of any given day, I speak on the phone with 20 people or more. At least 50% of them could use some telephone coaching. Here is a start: Record your conversations with others for one week. Listen back to your demeanor on the phone. Do you sound friendly? Do you sound knowledgeable? Do you sound businesslike? Next, ask a friend or colleague to listen and give you some constructive feedback on your telephone persona. A good telephone persona goes a long way to making you more successful.