It is drummed into the thick skulls of us Ozzie and Kiwi 'dehydrated, jet lagged, hypoxic village idiots' (just love that

) by our mostly Brit C&Ters that we must use maintaining (not maintains) climbing or descending (never 'to') when changing frequencies.
This was stated as ICAO compliant but given the quoted reference above seems not to be.
It DOES however increase situational awareness for those sharing our piece of sky and as such is good airmanship in my view...particularly as we spend an innordinate amount of our flying lives in Indonesian, Thai, Indian, Burmese and ME, EU skies...as well as Oz and the land of the long white cloud. The next time an aircraft is on an airway with opposite direction traffic at the same level won't be the first
When on climb and descent in various places it also acts as a final filter for picking up missunderstood clearances...aviation 'English' being what it is in some parts of the globe
I remember hearing a yank flying Reach xy some months back in the ME with excellent radio discipline...and was stunned...generally I want to Dry Reach listening to them.
Any C&Ter and/or Captain who allows 'ahhh' or 'um' to punctuate every second word of a radio call without swatting it on the head needs a talking too....it's disgracefull.
Every country has it's ICAO differences and I don't think any can claim the high ground on this matter....certainly not OZ OR the UK.
Just what IS the story with 'fully ready' in the UK

?
Why can't all countries have the same standard call for getting clearance and requesting push back?
Why do I seem to be the only person who reads that part of Jepps and rights down the info in the requested order before calling DXB ground (WHEN are you getting a CLD freq?) or London Clearance?
Love the simple clearances that seem the order of the day OUTSIDE Oz ..."Birdseed 007, cleared xyz, Tonvo 1 delta, squawk 2238." "Tonvo 1 Delta, 2238, birdseed 007". When will Oz put stop heights on their SIDs?
BTW the correct answer to "Call UAE control now xyz.a" is "xyz.a, emirates 007" (no, don't work there

) NOT "call UAE control now xyz.a, emirates 007"
Don't get me started on "Charlie Charlie"...or those Tossers who append their callsign with 'The"...mostly BA...mind you that seems to have been a passing fade..haven't heard it for ages. Perhaps management put out an edict banning it....or maybe I am filtering it.