Minnesota Statutes Trade Regulations, Consumer Protection (Ch. 324-341) § 325E.39. Telephone advertising services

(1) verify the placement of an advertisement that includes the advertiser's telephone number or other information that enables respondents to identify and communicate directly with the advertiser by calling the listed number or otherwise communicating with the person identified as the advertiser to ensure that the person placed or consented to the placement of the advertisement; and

(2) in any advertising for the telephone advertising service, provide a business mailing address or business telephone number sufficient to enable persons to communicate with the business operation of the service.