Mitel 3300 Technician's Handbook page 152

Technician's Handbook
When using the 3300 ICP in a cluster, the actual
registering sequence of the IP device is unchanged
provided the following guidelines have been observed:
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• 5140 and 5240 IP Appliances: press OK.
The set will complete initialization.
Note: Use the System Administration Tool to program
all other station features (for example, Class of Service,
Interconnect Restriction, Set Key Assignments, and
Class of Restriction).
The Cluster Element ID programmed in the Cluster
Element Assignment form must match the ICP/PBX
Number programmed in the ICP/PBX Assignment
form.
In a clustered environment, each member of the
cluster must be able to see the directory numbers
programmed on the other controllers. This
information is programmed by using OPS manager.
The Set Registration Access Codes and Set
Replacement Access Codes must be the same for
each controller in the cluster.
Each IP Phone must be able to retrieve the IP
address of one of the controllers in the cluster (see
program DHCP server instructions).
Note: Mitel Networks OPS Manager is required to use
3300 ICP systems in a clustered environment.