You really need to get to know the AIP yourself. IFG's can be good but they seem to go out of fashion quite quickly.
It's the same call in class C or D
refer:
AIP GEN 5.14.2 Starting and Initial Clearance Issue
When clearance delivery is in operation.
a.* (flight number, if any) TO (aerodrome of first intended landing) REQUEST CLEARANCE
if runway other than runway nominated is required.
b.* REQUIRE RUNWAY (number)