You just installed a second Cisco Unified Communications Manager cluster at a remote site that is
accessible over your WAN link.
Which two actions allow the route patterns in each cluster to route calls to the other cluster?
(Choose two.)

A.
Create SIP trunks to a centrally located gatekeeper.

B.
Create SIP trunks from each cluster to the other cluster.

C.
A Cisco Unified Communications Manager route group and a route list are mandatory for intercluster dialing.

D.
Create ICTs from each cluster to the other cluster.