With 2 six 4 on this
To fly through some of the busiest airspace in the world at that time of the day without R/T contact is evidence of either gross ignorance ( if you believe you're alone in the airspace) or gross stupidity ( if you think it makes no difference)
A call on 121.5 is one of the first things we do, unfortunately the vast majority don't maintain a listening watch.
Since Sep. 11 we are required to advise the Military of anyone in radio failure. They decide whether to intercept or not (from memory, four times in recent months at Maastricht alone)
I understand that the intention is that a bill for the costs entailed is to be presented to the operators.
Lon More, more than just an ATCO