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
B . Microsoft Active Directory Application Mode 2003
C . Microsoft Lightweight Directory Services 2008
D . iPlanet Directory Server 5.1
E . Sun ONE Directory Server (5.2, 6.x)
F . Open LDAP (2.3.39, 2.4)
Answer: A