peh said:
I'm about to move into a different department but can't remember how to
change contact details in Outlook.
If it is your entry in the GAL (the "Global Address List" address book)
then you have to request the Exchange admin (usually by calling your
helpdesk) to update your record there. That you are *about* to move
means it is unlikely they will change it. They'll probably won't change
it until AFTER your official move.