/mcpRegardless of how you create users, Unity Connection prevents you from creating two users with the same alias on the same Unity Connection server but does not prevent you from creating two users with the same alias on different Unity Connection servers in the same site or organization. Note In some cases, you may find it useful to create multiple Unity Connection users from the same LDAP user. For example, if you import the some of the LDAP administrator accounts into every Unity Connection server as Unity Connection users without voice mailboxes and use them as administrator accounts. This allows you to use LDAP synchronization and authentication for Unity Connection administrator accounts without creating one or more LDAP users for every Unity Connection server. Filtering LDAP Users For more information, see the “Filtering LDAP Users” section of the “LDAP Directory Integration with Cisco Unity Connection” chapter of the Design Guide for Cisco Unity Connection Release 15, available at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/design/guide/b_15cucdg.html. Adding an LDAP Filter Procedure Step 1 In Cisco Unity Connection Administration, expand System Settings > LDAP, then select LDAP Custom Filter. Step 2 The Find and List LDAP Filters page appears displaying the currently configured LDAP filters. Step 3 Select Add New. Step 4 In the Filter Name field, enter a name for this LDAP filter. If you are adding more than one LDAP filter configuration, enter a name that identifies the LDAP users included in the current filter, for example, “Engineering.” Step 5 In the Filter field, enter a filter that adheres to the LDAP filter syntax specified in RFC 2254, “The String Representation of LDAP Search Filters.” You must enclose the filter text in parentheses. Step 6 Select Save. Creating Unity Connection Users from LDAP Data Using the Import Users Tool The LDAP Integration process imports the LDAP data into a hidden Cisco Unified CM database on the Unity Connection server. You can create new Unity Connection users by importing the user data from an LDAP directory using the Bulk Administration Tool or Import Users tool. You can also use BAT tool to update the existing Unity Connection users with the users in an LDAP directory. Procedure Step 1 In Cisco Unity Connection Administration, expand Users and select Import Users. Step 2 On the Import Users page, import the LDAP user accounts to create Unity Connection users (For more information on each field, see Help> This Page): System Administration Guide 162 LDAP Filtering LDAP Users