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
Not part way through a phone call. Only as part of the initial call setup or part of the on hold loop.
If it has only happened once then it might be your call was routed a weird way around the phone network.
Because everyone’s is already being recorded if you’re in the US placing a phone call. Not cuz they were accidentally just happened to catch you and some other guys wiretap. They don’t bother with wiretaps except to justify what they’re already doing in front of a court.