Indiana Code Title 24. Trade Regulation § 24-5-12-25

Sec. 25. (a) If a person makes a solicitation to a prospect that is outside of the course of dealing (as described in IC 26-1-1-205), whether personally, through salespersons, or through the use of an automated dialing and answering device, the person may not knowingly or intentionally block or attempt to block the display of the person's:

by a caller identification service (as defined in IC 24-5-14.5-3) when attempting to initiate a telephone conversation for the purpose of making a solicitation to a prospect.

(b) A person who knowingly or intentionally violates this section commits a Class B misdemeanor. However, the offense is a Class A misdemeanor if the person has a previous unrelated conviction under this subsection.