The PR_PRIMARY_TELEPHONE_NUMBER property contains the recipient's primary telephone number.
| Header file: | MAPITAGS.H | 
| May be exposed by: | Messaging user objects | 
| Identifier: | 0x3A1A | 
| Property type: | PT_TSTRING | 
| Property tag: | 0x3A1A001E (0x3A1A001F for Unicode) | 
| Corresponding X.400 attribute: | IM_TELEPHONE_NUMBER | 
The PR_PRIMARY_TELEPHONE_NUMBER property is one of the properties that provide identification and access information for a recipient. These properties are defined by the recipient and the recipient's organization. For more information on this group of properties, see IMailUser::IMAPIProp.
Personal Information Properties