Combining Direct Marketing with Personal Selling Telemarketing and direct selling are two methods of personal selling used to generate sales. Nonprofit organizations charities often use telemarketing to solicit funds. As you will see, for-profit companies are also using telemarketing with much greater frequency to screen and qualify prospects and to generate leads. Direct-mail pieces are often used to invite prospective customers to auto showrooms to test-drive new cars; the salesperson then a responsibilit for the selling effort. Automobile manufacturers and their dealers have both made effective use of this approach.