I’ve been dialed like this before. Normally you cannot hear anything. I call BS on this. Did he record the call? Did he just call the police and say “hey guys, I heard these guys talking about how they were going to steal some equipment.”
“Oh, okay, we’ll get down there right away and arrest them and throw them in jail, because you have no proof, and nothing has gone missing.”
Seems super fishy to me.
I have received several such calls (all were innocuous) and so I hung up. But the conversation was clear and understandable.
A memorable one was with a guy and his fishing buddy discussing whether they wanted to keep trolling or head home, since they had caught a few.