If you want to integrate your CallManager to Active Directory, you'll have to follow these steps:
1. Configure the LDAP System
System --> LDAP --> LDAP System
Check the Enable Synchronizing from LDAP Server
Choose the LDAP Server Type: Microsoft AD
LDAP Attribute for User ID:
Save
2. Configure LDAP Authentication
System --> LDAP --> LDAP Authentication
Fill in the fields with the correct info to integrate your CM server with your AD
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