Guy D'ageradar quote
AMFSuggest you check out some accident reports - after Crossair Flight 3597 and several others, it bacame mandatory in a lot of places to confirm established before transfer to tower.
Guy.
If such reporting is mandatory in certain locales, it will either be published or the mandate will be met by ATC giving instructions for each aircraft to do so, which is usually the case.
And don't toss "read accident report" suggestions at me when the question is extraneous R/T, because I can toss as many back regarding accident/near accidents due to bogged-down airwaves and missed communications because some just want to hear themselves talk.