Originally Posted by
Ian W
If I was there today with the current systems my response to funny noises etc would be "{callsign} this is {centre} distress and diversion, your position is{lat/Long} what is your emergency?" as they will realize that the callsign was us identifying them so they were no longer anonymous, I would expect them to go quiet.
Sure, that's an outstanding plan *if* you know the call sign of the aircraft transmitting the pig noises on guard. That's a pretty big "if". I don't think it's very common for the pig noise brigade to identify themselves with a callsign. Like the (very) old joke goes: "I said I was effing bored, I didn't say I was effing stupid."