Which tool is used to migrate users from Cisco Unity to Cisco Unity Connection?

CSV import can bulk-create user accounts in Unity Connection but does not transfer existing voicemail messages, greetings, or settings from a legacy Unity system.

LDAP import synchronizes directory attributes for user provisioning but has no capability to extract or import voicemail data from Cisco Unity.

Exchange Synch (synchronization) is used for calendar and contact integration between Unity Connection and Microsoft Exchange, not for migrating data from a legacy Unity system.

COBRAS is a free Cisco-provided tool that exports subscriber accounts, mailbox data, personal greetings, and messages from a legacy Cisco Unity system and imports them into a Cisco Unity Connection system. It is the officially supported migration path and handles the translation between the two platforms' data models. Without COBRAS, migrating user voicemail data between these two distinct products would require manual recreation.

'Cisco Unity Migration Assistant' is not a real Cisco tool name; it is a fabricated distractor.