2015 ORS § 166.090¹
Telephonic harassment

(1) A telephone caller commits the crime of telephonic harassment if the caller intentionally harasses or annoys another person:

(a) By causing the telephone of the other person to ring, such caller having no communicative purpose;

(b) By causing such other persons telephone to ring, knowing that the caller has been forbidden from so doing by a person exercising lawful authority over the receiving telephone; or

(c) By sending to, or leaving at, the other persons telephone a text message, voice mail or any other message, knowing that the caller has been forbidden from so doing by a person exercising lawful authority over the receiving telephone.

(2) Telephonic harassment is a Class B misdemeanor.

(3) It is an affirmative defense to a charge of violating subsection (1) of this section that the caller is a debt collector, as defined in ORS 646.639 [bad link], who engaged in the conduct proscribed by subsection (1) of this section while attempting to collect a debt. The affirmative defense created by this subsection does not apply if the debt collector committed the unlawful collection practice described in ORS 646.639 [bad link] (2)(a) while engaged in the conduct proscribed by subsection (1) of this section. [1987 c.806 §2; 1999 c.115 §1; 2005 c.752 §1]