The crew in the control room seem powerless to block or track your serial harasser. Useless, all of them. Fortunately, you have the inside deal: your cousin Loni has one of those surveillance jobs with Farmland Security. With a few greased palms in your corner, they will gladly assist you in your quest to rid this country of a miserable pest. Why, this tormenting of you by this anonymous bum is as grave a threat as locusts decimating a farmer's crop land. Worse! People rely on you to nourish their spirits! You are the farmer of souls!
A couple gs later, and you have a Farmland Security uplink installed at the station to monitor and trace all incoming calls, even the ones that think they are spoofing another number or re-routing. Just a matter of waiting for your tormenter...