You don't really need one. Just append the extension to the phone number.
If youi want information on customizing the basic contact form, see http://www.slipstick.com/dev/forms.htm
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Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
& i've tried to create a phone ext# field in the main contact screren but
