Reg,
Not in the current version. Customizing fields in BCM is not supported and
consistently presents a very aggravating design limitation for MANY users!
The omission of a field for telephone extensions is also a design oversight
because the native Outlook Contact form has this option yet the BCM Contact
forms do not even though it is ironically with "BUSINESS" contact telephone
numbers where extensions are most commonly used! As you can tell, this
really irks me.
-THP