CallManager Cluster Communications
There are two types of communication between CallManager clusters:
Intra-cluster communication
Inter-cluster communication
Intra-cluster communication is defined as communications between
CallManager servers in the same cluster. It consists of replication of the
CallManager Database as well as dynamic information such as the registration of
H.323 devices. Inter-cluster communication deals with communications between
different clusters, and is established through the use of inter-cluster trunks.