administrator is importing users into Cisco Unity Connection from Cisco UCM. Several user accounts do not appear on the list after the Import Users process is selected Which situation causes this ..?

For a user to be imported from Cisco Unified Communications Manager (UCM) into Cisco Unity Connection, Unity Connection must be able to uniquely identify the directory number that will be used as the user's extension and mailbox number. The Primary Extension setting on the End User configuration page in UCM is the primary mechanism for explicitly designating this number. This is especially critical when a user has multiple lines or controls multiple devices. If the primary extension is not selected, Unity Connection cannot determine which extension to associate with the user, and as a result, the user will not be available on the import list. This is a very common administrative oversight during user provisioning.

B. The extension in the telephone number field is missing: A user can be imported if a primary extension is selected, even if the telephone number field is blank. The system treats these as alternative identifiers.
C. The users are not members of any groups: User group membership in UCM is for defining user privileges and access rights within UCM itself and is not a prerequisite for a user to be imported into Unity Connection.
D. The users have multiple controlled devices: Having multiple devices is a supported configuration. This does not prevent import, but it makes setting the primary extension crucial to resolve the ambiguity of which line to use.

1. Cisco Collaboration System 12.x Solution Reference Network Design (SRND)

Chapter: Cisco Unity Connection

Section: