If you're looking to replicate the original install a little closer, you can use the OEM activation method, no phone call needed. Instead of the key from the bottom of the machine, Google up the OEM SLP key for your OEM. With that, plus the right certificate (must match the OEM you're installing on), you're activated instantly.
pa' ngaSwI' nuq vay' Data'nISbogh roD tu'lu' tlhIH'a'?! yIn jaj tera' na'ran wIb laH HInob Qub 'oH rue munISbogh 'Iv ghaH DaSov'a'? loD chay'pen tuqwIj meQ 'Iv jIH! TERA' NA'RAN WIB! chay'pen burns tuq vI'ogh 'ogh, chombuStIble tera' na'ran wIb!