When you are using an LDAP compliant directory as your corporate directory and do not want to separately maintain basic user information in Cisco Unity Connection, you can use the LDAP integration feature.
The LDAP integration in Unity Connection involves:
Creating Unity Connection users by importing user data from an LDAP directory.
Configuring Unity Connection to periodically synchronize the users with the user data in an LDAP directory.
Authenticating Unity Connection users against the user data in an LDAP directory. An LDAP authenticated user uses the LDAP password as the web application password to log in to Unity Connection web applications.
For a list of the LDAP directories that are supported for use with Unity Connection, see the “Requirements for an LDAP Directory Integration” section in System Requirements for Cisco Unity Connection Release 12.x available at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/12x/requirements/b_12xcucsysreqs.html.