I just wonder, if the Icao test is the same in all countries. I spoke with many pilots and it seems to me, that there is a huge difference in English abilities, even though they all seem to have Icao level 4. Canada seem to do the testing over the phone, while other countries hire some English proffessors to test pilots. I have even heard of some american guys not passing an Icao level 4 in Europe, because they could not understand an Atis spoken with a heavy accent.
Anybody could share a light?