CUC 10.X supports LDAP integration with several widely used LDAP directories systems,
including the following:

A.
Microsoft Active Directory 2000, 2003 and 2008 (support for AD 2012 only in CUCM 10.x and
later)
Microsoft Active Directory Application Mode 2003
Microsoft Lightweight Directory Services 2008
iPlanet Directory Server 5.1
Sun ONE Directory Server (5.2, 6.x)
Open LDAP (2.3.39, 2.4)