S.D. Codified Laws § 37-30-23
§ 37-30-23. "Automatic telephone dialing system" defined
For the purposes of § § 37-30-23 to 37-30-29, inclusive, an automatic telephone dialing system is any
automatic terminal equipment which stores or produces numbers to be called randomly or sequentially and which
delivers a prerecorded message to the number called without assistance of a live operator.