Sorry it's not an exact answer but.... it doesn't really matter. As the controller, as soon as I realise lost comms, I'm going to get everything else I can out of your way and expect you to do ANYTHING. We all know there are procedures laid down, both local and international, but I would have to say any controller should be thinking that a lost comms pilot may either follow a procedure which he may or my not have read, may or may not have interpreted in the same manner as me, or may be ignoring in favour of a different procedure, and that's before we consider there may be other problems, not just comms
. I would add that if possible, doing things slowly and having a bit of a hold to think about it or try other comms channels may be a nice idea to allow moving of other traffic, warning other units etc.,
(Ducks, and prepares to be battered by the great "But the book says" brigade)