Thanks 10W that claries it for me, as does the most recent Jepp chart which says the same.
Do you ever see the Scottish - Faroe - Iceland corridor ever becoming part of domestic airspace, ie enough radar coverage/control/communication that airspace may be re-designed, and flights will not enter any oceanic airspace?

Re passing those voice/HF met reports in the N Atlantic that another thread discussed. Have you heard any possible changes to that requirement, seeing as so many aircraft can do it automatically? Any pointers you can give to us pilots, other than what's written, on the passing of those reports to you?

It seems logical to me, and is the procedure where I live, to include "via flight planned route" when you start using the "cleared to (insert destination)..." type of clearance. I would not think cleared as filed (the logical conclusion when nothing is to change) is safe, because A) The aircraft might have two or more flight plans; and B) terminal area departure instructions need to be very precise because of airborne turns, maintains etc.

I do like the advice given in the US about when to expect climb to cruise level as that could be reassuring to a non-native English speaker when he/she was setting off on a 12 hour flight. We don't do it and no-one ever seems to query the low maintains airborne, I guess they know that we know a 747 won't reach LAX traveling for 14 hours at 5000 feet.