Your telephone is the lifeline of your company. If you don't think so, disconnect it for 30 days and do everything by snail mail. You'll be out of business in no time. Very few people do. Selling by phone is not haphazard.
Top producers have a system, and know exactly what they're going to say.
They know that every single time they're talking to someone, they're going to ask for the order. They have many closing techniques, and are masters at asking questions. There are no natural born salespeople. Top producers studied and worked hard to achieve the success they have. They learned long ago that selling by phone is not a numbers game.