Sorry, I still dont' get it.
[...]
So, an aircraft may be requested to:
1. “STAND BY” on a frequency when it is intended that the ATS unit will initiate communications soon, and to
[...]
4. What exact phraseology is to be used?
Transfer of Communications in ATC Sector 1:
ATC: “SPEEDBIRD 123, standby for Maastricht (on) 118.950”
Airborne Station: Standby for Maastricht 118.950, SPEEDBIRD 123”
Start of Communications in ATC Sector 2:
Airborne Station: “Maastricht, SPEEDBIRD 123 Standing by”
No reply is to be expected! ATC has the responsibility to initiate communications and address the flight.
[...]
This still seems like a contradiction to me.
Yes I can see the other regulation quoted, but once again, wouldn't a "contact with callsign only" then yield the same result without the need for this trial (and what seems to be a bit of confusion) in the first place?