Are we to assume you are referring to the Outlook Address Book? If so, the
standard behavior for the Outlook Address book is to display all electronic
addresses (both fax and e-mail). That behavior cannot be changed. The only
way to prevent the display of fax numbers is to store them in a different
field or to disguise them (e.g., precede them with an alpha character) so
that Outlook won't recognize them as phone numbers.
There are also a number of utilities available that can do this for you
automatically. Some are listed here:
http://www.slipstick.com/contacts/nofax.htm
