Avaya S8100 Series Manual page 203

If you do not stop call processing on the LSPs, all telephones have service during the time the
LSPs are controlling calls. This service continues if there is a problem with the upgrade of the
primary controller. In addition, not stopping call processing on the LSPs has the following
consequences:
IP telephones are likely to register to the appropriate LSP during the server upgrade.
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You must reset the LSPs when the primary controller upgrade is complete to reregister the
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IP telephones to the primary controller.
Upgrade firmware on media gateways and media modules
You can use the Upgrade Tool to upgrade the firmware on all the media gateways and media
modules. However, to use the tool, the firmware files must be resident on the S8300.
For more information on the firmware upgrade process, see Installing and Upgrading the Avaya
G700 Media Gateway and Avaya S8300 Media Server (555-234-100).
The need to restore IP telephone files
During an upgrade, any data in the /tftpboot directory is overwritten with new software and
firmware. The system might use files in the /tftpboot directory for the http or tftp capability for
4600-series IP telephone firmware downloads and configuration updates. If so, the firmware
and 4600-series telephone configuration file are overwritten during the upgrade.
The 46xx firmware is contained within a 46xx .tar file, in a name format similar to the filename
46xxH323_cm2_2_wi1_15_ipt2_2_111405.tar. You must retrieve the firmware file from the
Avaya Downloads Web site and download the 46xx firmware file to the server after the upgrade.
However, you can save a copy of the 46xx configuration file before the upgrade and copy the
file back into the /tftpboot directory after the upgrade.
Prerequisites
Issue 2.1 June 2006 203