[ActiveDir] AD and Exchange not sharing.

[Steve Shaff]

It appears that Exchange and the AD are not syncing information.  We have recently discovered that, Under the global address list (displayed in Outlook), user name properties, the address, phone, etc are blank.  Even though, in ADUC the address, department, phone are listed.  It seems only to be happening for a handful of people.  Does anyone know how to fix this? Or what the problem may be?   Thanks, S