Refer to the exhibit.
What are three of the basic components of a VoIP network? (Choose three.)
A.
software voice applications
B.
multipoint control unit (MCU)
C.
gatekeeper
D.
call agent
E.
interactive voice response (IVR) systems
F.
softphones
Explanation:
For H.323 VOIP networks the ITU-T H.323 standard specifies four components:
gateway
gatekeeper
terminal
multipoint control unit (MCU)
For MGCP/SCCP VOIP networks the components that make up a VoIP system include a
Signaling Gateway, Call Manager, Call Agent, and Media Gateway Controller.
http://www.cisco.com/warp/public/788/voip/understand-gatekeepers.html