I have a customer that is using IPCC Express 5.0 with CallManager 5.1. CallManage is set up for LDAP Authentication for End Users. According to “Understanding the Directory”

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/5_0_1/ccmsys/a04direc.html

"When both synchronization and authentication are enabled, the user gets authenticated against the corporate directory. Thus, users need to use their corporate directory password."

In my scenario I am using Active Directory, so when an agent logs into the CAD are they authenticated via Active Directory? The reason for the question is that I want to make sure that CallManager is completely out of this process and that the authentication happens real time with Active Directory.

Thank you,