Dave,
You started the phones/network issue with a question in post #575, which was answered in the very next post, which if course you then disagreed with. Perhaps it is you that has the problem with its relevancy. If the AAIB find it relevant, of course will be in the final report.
I'm still puzzled as to what FASRP clarified for you earlier, and I wish he had referred to relevant posts because I cant see anywhere where someone has said what he claims was said, especially after post #584 made it quite clear how it all works.
I am happy to leave the phone/network discussion go, as table 1 in the SB tells us all we need to know for now and the only other thing that can be added is wether or not there was any further intended messaging happening after 07:55. This, we will only find out from the final report.