/mcpIn case of a cluster, you perform all the LDAP configuration tasks only on the publisher server. 1. Activate the Cisco DirSync service in Unity Connection to access an LDAP directory. See the Activating Cisco DirSync Service section. 2. Enable LDAP synchronization. See the Enabling LDAP Synchronization section. 3. Add one or more LDAP directory configurations that define the LDAP directory and user search bases in which Unity Connection accesses data, and import data from the LDAP directory in to a Unity Connection server. See the Configuring LDAP Directory Configurations section. 4. (Optional) If the phone numbers stored in the LDAP directory are not in the same format as the extensions that you want to use in Unity Connection, specify a regular expression that converts phone numbers into extensions when you import LDAP data into Unity Connection. See the Converting Phone Numbers into Extensions section. 5. (Optional) If you want to use SSL to encrypt the usernames and passwords that are sent to the LDAP server for authentication, export an SSL certificate from the applicable LDAP servers, and upload the certificates on the Unity Connection server. See the Uploading SSL Certificates on the Cisco Unity Connection 9.x Server section. 6. (Optional) Configure LDAP authentication if you want to authenticate the username and web application password of a Unity Connection user. See the Configuring LDAP Authentication in Unity Connection section. 7. You can add new Unity Connection users linked to the user data in LDAP directory or integrate existing Unity Connection users with the LDAP user data. Do the following steps: Select the user search bases that you specify when you create LDAP directory configurations. See the Selecting the LDAP Users to Import into Unity Connection section. If you need to determine whether a Unity Connection user is integrated with an LDAP directory, see the Determining if a Unity Connection User is Integrated with an LDAP Directory section. (Optional) You need to specify one or more LDAP filters if the user search bases are not sufficient enough to control the LDAP users that are synchronized with Unity Connection users. See the Filtering LDAP Users section. You can use either of the following tools to import user data from an LDAP directory: The Bulk Administration Tool is used to add new Unity Connection users by importing the LDAP user data information into a comma separated value (CSV) file. Importing from a CSV file can be useful for transferring information from an LDAP directory to Unity Connection. For more information, see the Changing LDAP Integration Status and the Integrating Existing Unity Connection User Accounts with LDAP User Accounts Using Bulk Administration Tool sections. The Import Users tool is used to add new Unity Connection users by importing the user data from an LDAP directory. For more information, see the Creating Unity Connection Users from LDAP Data Using the Import Users Tool section. Note System Administration Guide 149 LDAP Task List for Configuring LDAP