Wis. Stat. § 196.625
Except as provided in s. 196.63, a telecommunications utility shall receive and transmit without discrimination messages from and for any person upon tender or payment of the usual or customary charges therefor, whenever requested to do so, without regard to the character of the messages to be transmitted unless a court of competent jurisdiction finds the messages to be in violation of s. 944.21(3). Any telecommunications utility or agent, as defined in s. 196.66(3) (a), neglecting or refusing to comply with any of the provisions of this section shall forfeit not less than $25 nor more than $5,000 for each day of such neglect or refusal. Any director or officer of a telecommunications utility neglecting or refusing to comply with any of the provisions of this section shall forfeit not less than $25 nor more than $2,500. Any employee of a telecommunications utility neglecting or refusing to comply with any of the provisions of this section shall forfeit not less than $25 nor more than $1,000. One-half of the forfeitures recovered under this section shall be paid to the person prosecuting under this section.
Wis. Stat. § 196.625
A private person cannot commence a forfeiture action under this section and thus forcibly join the state as a plaintiff. State v. Wisconsin Telephone Co. 91 Wis. 2d 702, 284 N.W.2d 41 (1979).