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Networking Guide for Cisco Unity Release 5.x (With Microsoft Exchange)
OL-13844-01
Chapter 7 VPIM Networking
VPIM Concepts and Definitions
Automatic VPIM Subscriber Directory Updates
In addition to manually creating, modifying, and deleting VPIM subscribers, you can configure
Cisco Unity to automatically create, update, or delete VPIM subscriber records based on information
contained in incoming VPIM messages. The settings that control whether or not the creation,
modification, and deletion actions occur automatically, and how the incoming information is used to
create or modify a record, can be individually configured for each delivery location. By default, no
automatic directory updates will occur for any VPIM delivery locations.
See the following sections for discussions of the details:
• Directory Update Processing That Occurs at the Voice Connector, page 7-46
• Directory Update Processing That Occurs on the Cisco Unity VPIM Bridgehead Server, page 7-47
• Population of VPIM Subscriber Information, page 7-48
• Subscriber Addressing Considerations with Automatic Updates, page 7-50
• CsVPIMConnector Logging, page 7-50

Directory Update Processing That Occurs at the Voice Connector

The directory update process begins when an incoming VPIM message is delivered from a remote voice
messaging system to the Voice Connector. The Voice Connector processes the incoming message as
described in the “How the Voice Connector Processes Incoming VPIM Messages” section on page 7-41.
In addition to the basic process, if the delivery location that is matched to the sender is configured to
allow automatic creation or automatic modification of VPIM subscribers, and if the message contains
sufficient information, the Voice Connector also creates a directory update message addressed to the
UVPIM_<Servername> mailbox. Depending on how the delivery location is configured, the Voice
Connector will use information either from the header of an incoming VPIM message, or from a vCard
attachment included with the message.
Note If more than one vCard attachment is included with a message, only the vCard in the most recent portion
of the message will be used for automatic creation or modification of a VPIM subscriber account.
The vCard or header information must contain a phone number, a text name, and a domain name; if the
selected source of directory information is missing one of these fields, no directory message will be
created. The Voice Connector also uses this information to check for the existence of a matching contact,
which will indicate whether the directory update pertains to creating a new VPIM subscriber, or to
modifying an existing one.
If the processing of the incoming VPIM message at the Voice Connector results in a nondelivery receipt
(NDR), the Voice Connector will not create a directory message for the sender. An NDR may instead be
generated for the incoming VPIM message after it leaves the Voice Connector (for example, if the
recipient mailbox is full), but in such cases, the Voice Connector will have already created the directory
message.
Alternatively, the Voice Connector may receive an NDR from a remote voice messaging system in
response to an outgoing message addressed to a VPIM subscriber. In this case, the Voice Connector
checks the corresponding delivery location to see whether automatic deletions are enabled. For a
successful deletion, the vCard or header fields in the NDR must contain a phone number and domain
name, and an SMTP reason code indicating the reason for the delivery failure.