Which two gateway configuration statements are required, at a minimum, in order to enable Cisco Unified CallManager to control a T1 PRI in an MGCP gateway? (Choose two.)
A.
mgcp
B.
ccm-manager config
C.
pri-group configuration on the controller
D.
mgcp call-agent pointing to tftp server
E.
isdn l3-backhaul ccm-manager on the serial interface
F.
config-server address pointing to tftp server