Telephone section not visible via SEARCH, FOR PEOPLE

I am using Window XP, on START, SEARCH, FOR PEOPLE, it only show some
of the Active Directory information.

Are there anyway to show the TELEPHONE section of Active Directory and
allow me to update the 'mobile phone' information ?

I am expecting the telephone information will flow onto Exchange which
when I pull up the GAL, mobile phone information will be there
eventually.

Any comment and advice most appreciated. KL