Software Requirements; Main And Branch Office Running The Same Release; Main And Branch Office Running Different Releases - Avaya 1000 Installation And Commissioning Manual

Overview
If you equip digital telephones and analog (500/2500-type) telephones at the Branch Office, you
need to add more DSP ports for digital-to-IP Phone and analog-to-IP Phone connections. The
number of additional DSP ports must be equal to or greater than the expected number of
simultaneous connections of these types. You can engineer fewer DSP ports, depending on their
blocking ratio.

Software requirements

This section describes the relative software versions required in the main office and Branch Office
locations. The actual software packaging requirements are given in
page 83 and Branch Office requirements

Main and Branch Office running the same release

Normally, the main office and associated Branch Office run the same software release.
However, a Branch Office location can be running an earlier software release than the software
release running at the main office. This situation is discussed in the next section.

Main and Branch Office running different releases

It is recommended that the software release on the Branch Office match the software release on the
Main Office. However, the Main Office Call Server and the Branch Office can have different software
releases, as long as the Main Office runs the latest software release. The Main Office running
Communication Server Release 7.6 supports Branch Offices running Communication Server 1000
Release 4.5 or later.
Indefinite operation with a mixed-software configuration of Communication Server 1000 Release 4.5
or later Branch Offices, and a Communication Server 1000 Release 7.6 Main Office is supported.
Consider this mixed software policy when planning your system upgrade. Branch Offices must be at
Communication Server 1000 Release 4.5 or later before upgrading the Main Office to
Communication Server 1000 Release 7.6 to ensure a supported configuration during the upgrade
period.
Note 1: Both the Call Server and Signaling Server in the Main Office must run the same release of
software. Upgrade the Branch Office Communication Server 1000 within thirty days to the same
Communication Server 1000 release installed on the Main Office.
Note 2: If the NRS at the Branch Office is also the Alternate NRS in the network, then both it and
the Primary NRS must be running the same software release.
Branch Office Installation and Commissioning
54
on page 84.
Comments? infodev@avaya.com
Main office requirements on
June 2014