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Installation and Reference Manual
System Operation
Installation and Reference Manual v3.2/0410/6
75
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Any configuration (other than the IP address and Call Server Name) previously stored on the
Secondary Call Server will be lost as this Call Server becomes a part of the Primary Call Server’s system
and takes its configuration from the Primary Call Server.
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Any Phone and/or Trunk modules and/or PCS IP phone should be disconnected from the Secondary
Call Server before it is connected to the Primary Call Server. They can be reconnected again as
described above.
A Global System
After the above procedures have taken place each Call Server, Phone Module, Trunk Module, PCS 580/
570/560, 410/400, 100, PCS 60 IP phone and PCS 50 IP phone is part of the one system regardless of their
location. The Primary Call Server will replicate the relevant configuration information to each Secondary
Call Server.
Each Secondary Call Server will be responsible for passing on relevant configuration information to Phone
and Trunk Modules, IP Phones etc that are directly connected to this Call Server. Any configuration
information received from these Phone Modules, Trunk Modules or IP Phones etc will be passed back to
the Primary Call Server by the Secondary Call Server for storage in the master database.
If the Primary Call Server fails all Secondary Call Servers will continue to operate and devices that were
registered to the Primary Call Server then re-register to a Secondary Call Server (provided that they are on
the same LAN). This will be the first Secondary Call Server to respond.
If a device, eg Phone Module or PCS IP phone, is connected to the system via the network the Primary
Call Server will always respond the quickest to a registration request, followed by the Secondary Call
Server with the smallest number of devices attached and so on. This will ensure that the load is shared
among all Secondary Call Servers. Therefore, to ensure that any module or IP Phone connected to the
Secondary Call Server does not register with the Primary Call Server before the linking process is complete
power up the unit after the Secondary Call Server has connected to the Primary Call Server.
Primary Call Server
Secondary Call Server
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