You have installed a C-Series endpoint in an office where DHCP is not supported. At a minimum, which four network items must be configured for the endpoint to be able to register with H.323 on a Cisco TelePresence Video Communication Server located at the external headquarters location?

A.	unique IPv4 address
B.	subnet mask
C.	default gateway
D.	Cisco VCS IPv4 address
E.	Active Directory IPv4 address
F.	SMTP server IPv4 address