Originally Posted by Best Speed
Comon' how about? "Centre IFR Taxi!!"
I've altered the formatting so my post doesn't look as ugly as yours
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I actually thought this was a requirement, but I can't find it. At any rate, it is far preferable to launching in to "Melbourne Centre, ABC C182 2 POB IFR taxiing Learmonth Port Hedland runway 36" only to recieve the reply, "ABC, you were in with a ground station, say again".
It is certainly a requirement to contact ATS 2 minutes prior to TOD (or any other level change) so they can pass traffic. The best way I've heard this carried out is,
"ABC 2 minutes top of descent"
"ABC, traffic is bla bla bla"
<<2 minutes later>>
"Centre and all stations Broome area, ABC 30 miles SW of Broome, leaving FL130 on descent, Broome at 32"
You get your traffic in good time, you then make the leaving call as well as alerting any VFR traffic in the area of where you are and what you are doing.