Deliver prepared sales talks, reading from scripts that describe products or services, to persuade potential customers to purchase a product or service or to make a donation. Deliver promotional presentations to current or prospective customers. Contact businesses or private individuals by telephone to solicit sales for goods or services, or to request donations for charitable causes. Contact current or potential customers to promote products or services. Explain products or services and prices, and answer questions from customers. Explain technical product or service information to customers. Answer customer questions about goods or services.