LazyMAPI

MAPI Properties

MAPI Property: PR_PRIMARY_FAX_NUMBER, PR_PRIMARY_FAX_NUMBER_A, PR_PRIMARY_FAX_NUMBER_W
Description: Contains the telephone number of the recipient's primary fax machine.
Property ID: $3A23
Property type: PT_STRING8, PT_UNICODE
Area: MAPI mail user

Remarks:
These properties provide identification and access information for a recipient. They are defined by the recipient and their organization.