back in the day
Once upon a time, in a faraway land, our employer had a dodgy little box secreted away under a set of stairs.
It was connected to the PABX and recorded quite a lot of stuff.
Until one day the box blew up and it was brought out to the workshop for a technician to fix.
The technician did quite a lot of sniffing around and discovered the full extent of the bosses eavesdropping.
Pretty soon everyone in the building became aware of this and were very careful about dissing the boss over the phone.
Then we all lived happily ever after.