S.D. Codified Laws § 49-31-1.5
§ 49-31-1.5. Unsolicited telephone call defined
For the purposes of this chapter, the term, unsolicited telephone call, means any telephone solicitation call other than a call made:
(1)
In response to an express request of the person called;
(2)
Primarily in connection with an existing debt or contract, payment or performance of which has not been completed at the time of such call; or
(3)
To any person with whom the telephone solicitor, or any business or financial institution on whose behalf the telephone call is being made has an established business relationship.
(Defined in § 49-31-1.6)
