Which two gateway configuration statements are required in order to enable Cisco Unified Communications Manager 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 13-backhaul ccm-manager on the serial interface

F.
ccm-manager config server {TFTP ip_address}

Explanation: