[QQQQ]

“How could a person in “first class” hear a conversation in the back of the plane?”
1.Aircraft at the gate-engines off.
2.Domestic flight-Airbus 320/321.Small aircraft.
3.Someone speaks loud-you can hear it for sure :-))
4.Try to fly 1st class more often:-)))

[AppyPappy]

There is no first class on that jet. It’s just business class. Hence the suspicion. You’d think a passenger would know that. If the engines were off, you can use a phone. You just can’t use it during takeoff.