Hi Piperboy,
Genghis has it right but it can depend on the individual airport in odd cases.
Your local airfield to the south west only has AG radio so while you are talking to the radio operator, remember the calls are for the benefit of all the traffic in the area so position reports after the initial "heads up" call are important.
Initial call for departure by all means say "N**** Understand runway 27 right hand QNH 1020 taxiing C"
The large international airport 30 miles further south wants to know you are arriving or transiting before you fly either by flightplan or phone otherwise you may be orbiting 'till they make up a flight strip.
They should already have your flight strip so the initial call will be "XX approach, Maule N**** with information A" (From the ATIS). The ATIS actually asks for the initial call in that format.
Individual airports can have their own quirky rules but that is what the three major Scottish airports ask for.
D.O.