Duplicates
From here, you can automatically remove any duplicate entries in your list, using
the criteria you specify. Make any appropriate changes to the Duplicate Criteria
and Options boxes, then click Begin to start the operation. Any duplicate entries
that are found will appear, and you will be able to choose to remove one of them
or to keep both and continue. Note: using this tool permanently removes duplicates
from your List, unlike the Don't call duplicates with same: option on the
Advanced tab of the Call Options dialog box, which allows you to specify which
duplicates will not be called without actually permanently removing them from
your List.