(a) Within the first 30 seconds of a telephone call, a commercial telephone seller or salesperson shall identify himself or herself by stating his or her true name, the company on whose behalf the solicitation is being made, and the consumer goods or services being sold.

(b) If a sale or an agreement to purchase is completed, the commercial telephone seller shall inform the purchaser of his or her cancellation rights as provided in this chapter, state the license number issued by the division for both the commercial telephone seller and the salesperson, and give the street address of the commercial telephone seller.

(c) All oral disclosures required by this section shall be made in a clear and intelligible manner.