Indiana Code Title 35. Criminal Law and Procedure § 35-45-2-2

(1) makes a telephone call, whether or not a conversation ensues;

(2) communicates with a person by telegraph, mail, or other form of written communication;

(3) transmits an obscene message, or indecent or profane words, on a Citizens Radio Service channel; or

(4) uses a computer network (as defined in IC 35-43-2-3(a)) or other form of electronic communication to:

(1) the average person, applying contemporary community standards, finds that the dominant theme of the message, taken as a whole, appeals to the prurient interest in sex;

(2) the message refers to sexual conduct in a patently offensive way; and

(3) the message, taken as a whole, lacks serious artistic, literary, political, or scientific value.