Panasonic KX-NS1000, Programming Manual

Page: 33 / 1182

1.2.3.1 One-look Networking Survivability
A One-look network can be configured so that even if a site’s main PBX fails or is otherwise disconnected from
the network, operation of the One-look Network as a whole continues. One-look Networking Survivability
provides the following features:
•
Backup Master mode
A Slave unit can be designated as a Backup Master unit. When the Master unit goes offline, the Slave units
will detect the change in status. The designated Slave unit will switch to Backup Master mode, and the
other Slave units will use the Backup Master unit as the Master unit.
•
Isolated mode
If no PBX is designated as the Backup Master unit, or if the Backup Master unit also goes offline, Slave
units will operate in Isolated mode if they are set to do so. In Isolated mode, each PBX will provide service
to the extensions registered to it and for the trunk lines connected to it.
•
Automatic Rerouting to Secondary PBX
If the unit to which an IP extension (e.g., IP-PT or SIP extension) is connected fails, the extension can
automatically switch its connection to a secondary PBX.
•
UM Group Failover
When a PBX goes offline, incoming calls routed to the UM group of the PBX can be automatically redirected
to another PBX’s UM group.
For more information about One-look Networking Survivability and programming required for each aspect of
network survivability, refer to "4.2.3 One-look Networking Survivability" in the Feature Guide.
PC Programming Manual 33
1.2.3 PBX Configuration Types