Originally Posted by
Sergei.a320
No, If you were cleared to descend via STAR, it's OK! But if it were RADAR VECTORS to IAF and after ATC : "proceed direct IAF, CLEARED ILS RW..." .Does it mean that we're able to descend as published?
An ILS gives lateral and vertical guidance by basically flying down a cone. So if you are cleared for the ILS, down that cone is the only place you can go! The descent is implied. You can do everything except land.
You might also be told to "turn left heading *** cleared to intercept localiser, report established" - in that case you're not cleared for the ILS so you can't descend (it's usually a prompt for them to hand you over. I've also heard "descend with the glideslope" which effectively means the same as cleared for the ILS.