Which two Cisco components are required to extend an existing VoWLAN to dual-mode wireless phones? (Choose two

Which two Cisco components are required to extend an existing VoWLAN to dual-mode wireless phones? (Choose two.)

A.
An LDAP server for the WLAN

B.
Cisco Unified Mobile Communicator

C.
Cisco Unified Mobility Advantage client

D.
Cisco Unified Mobility Advantage

E.
Cisco Unified Communications Manager

F.
A RADIUS server for the WLAN