No probs.
BTW, for some history on GSM itself, look on gsmworld, under "about gsm association" and then history... IF that's not enough to keep her busy today
And I forgot 1 website, the telco watchdog of The Netherlands,
www.opta.nl... Could be wrong about the URL, for some reason my setup here doesn't like the site... But is should provide some additional info on GSM in my country... Not sure if there's an English section tho...