This just happened to me and I am a little shook. Very weird. I was talking to my friend in NYC and randomly this voice came on the line saying “this call is being recorded”
He heard it as well. We both have iPhones and were just talking over the PSTN. Wtf
Your friend is a mole from the FBI trying to find out what time your smuggled shipment is arriving at the docks. Just make sure to take plenty of muscle with you and you’ll be fine. First sign of Batman get out of there.