A person who knowingly possesses (i) an unlawful electronic communication device or (ii) equipment or materials used to manufacture an unlawful electronic communication device as defined in § 18.2-190.1 with the intent to manufacture an unlawful electronic communication device shall be guilty of a Class 6 felony unless such possession is by an electronic communication equipment manufacturer while lawfully acting in that capacity, or a facilities-based electronic communication service provider licensed by the Federal Communications Commission or by a law-enforcement agency.