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(2) Do not change the firmware file name or use different model firmware, otherwise the system
will reject it.
1.18 Stackable Management (PC#1 only)
IP PBX is scalable and allows you to enlarge capacity by stacking up to four IP PBX boxes to form a
cluster.
4.1.26Operation Modes
IP PBX provides three modes, standalone mode, master mode and slave mode. The default mode is
standalone mode while there is no cluster and IP PBX box works independently. Once a cluster is
formed, only one IP PBX box runs in master mode, and rest of boxes run in slave mode in the cluster.
For instance, with full-capacity case, there would be one master box and 3 slave boxes in a cluster.
Select
System
->
Stackable
to see the current operation mode of each IP PBX box.
4.1.27Consolidated Management
Stackable Management page of the master box not only indicates IP addresses of current slave
boxes in a cluster but also allows you to add new slave boxes to the cluster or remove slave boxes
from the cluster. You can simply manage a cluster in Stackable Management page of the master box.
Within a cluster, any extension/user update of configuration information to the master box would affect
all slave boxes automatically. As a result, you shall only configure the master box to take control over
the whole cluster in most cases. Meanwhile, all boxes within the same cluster share the same
registration information and work as one single box.
Note:
For SIP and PSTN trunks, and Meet-me conferences, you need to configure them respectively
on each box in stack. It is similar to how you configure them in standalone mode.
Note:
For Meet-me conferences in stack, do not enter the same room number in slave and master
boxes, though the function need to be configured respectively.
4.1.28Configuration Procedure
The following examples illustrate how to configure a stack.
4.1.28.1Case I: Stack multiple IP PBX boxes from scratch
1.
Ensure all boxes have factory default settings before being stacked.
2.
Ensure all boxes have TCP routing to each other via LAN interfaces if they are in different local
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