7-54
Networking Guide for Cisco Unity Release 5.x (With Microsoft Exchange)
OL-13844-01
Chapter 7 VPIM Networking
VPIM Concepts and Definitions
Deleting VPIM Subscribers
Each VPIM subscriber is associated with an Active Directory contact. When you delete VPIM
subscribers in the Cisco Unity Administrator by deleting the subscriber accounts individually, the
underlying contacts are automatically deleted. To delete all of the VPIM subscribers associated with a
delivery location, the underlying contacts associated with the subscribers, and the delivery location
itself, use the Global Subscriber Manager, available in Tools Depot. Note that when you delete a VPIM
delivery location, blind addressees are also removed from all private lists. Consider notifying subscribers
of these potential changes to their private lists.
If enabled by the delivery location Subscriber Creation settings, Cisco Unity can automatically delete
VPIM subscribers when non-delivery receipts are received from the delivery location in response to
messages that are sent to VPIM subscribers. For further information, see the “Automatic VPIM
Subscriber Directory Updates” section on page 7-46.
Extension Addresses
When you create a VPIM subscriber, Cisco Unity automatically generates an e-mail address in the
following format:
VPIM:<Delivery Location Dial ID>_<Remote Mailbox Number>
This special e-mail address is called an extension address or a remote address. The extension address is
a combination of the delivery location Dial ID with which the VPIM subscriber is associated, and the
Remote Mailbox Number of the VPIM subscriber. Each contact in Active Directory that corresponds to
a VPIM subscriber contains an extension address.
When subscribers use the phone to address messages to a VPIM subscriber, they dial an extension.
Cisco Unity recognizes the recipient as a VPIM subscriber and retrieves the extension address from the
SQL Server database on the Cisco Unity server.
Extension addresses are generated automatically when you create VPIM subscribers. Extension
addresses are updated automatically when you change the remote mailbox number, and are automatically
updated if you change the Dial ID of a delivery location.
Determining How VPIM Subscribers Appear in the Outlook Address Book
Depending on your installation, the users of the remote voice messaging system may already have Active
Directory accounts and Exchange mailboxes on your local network that they use for e-mail. Therefore,
when VPIM subscriber accounts are created for them, the Exchange address lists will contain duplicate
listings—the existing user account that is used for e-mail and a new contact that is used only for voice
mail. Both listings are included in the Outlook address book. This means that people may inadvertently
send e-mail messages to the contact, which should be used only for addressing voice messages.
To discourage people from inadvertently sending e-mail messages to VPIM subscribers, you can prevent
the associated contact from appearing in the Outlook address book. Alternatively, you can change how
the display name for the contact appears in the Outlook address book so that subscribers can distinguish
the contact from a user account. In this way, you can reduce the number of e-mail messages inadvertently
sent to contacts and simplify addressing for those who send voice messages to VPIM subscribers at the
same time.
Either before or after you create VPIM subscriber accounts, you can prevent the associated contact from
appearing in the Outlook address book by hiding the contacts from Exchange address lists. When you
do so, Exchange will still deliver e-mail messages addressed to an existing user account (if one exists)