Avaya XT Series - Enabling and Securing Upgrades

You can always downgrade the system to a previous version. Beginning with this release, the XT
Series only accepts verified signed software packages. In 9.0 recovery mode or higher, you
cannot downgrade to 8.3.x or use an unsigned package. In 9.0 standard mode, you need to
disable Verify Signature to downgrade from this release using an unsigned package. Contact
your local customer service representative for more information.
Enabling and Securing Upgrades
About this task
You can remotely upgrade your Avaya Room System XT Series with new firmware either from
Avaya Meetings Management or from a remote Windows computer running the XT Series
upgrade program. XT Series software packages are signed by an Avaya Certificate Root Authority.
The XT Series only accepts verified signed software packages. To downgrade the XT Series to a
previous version, you must manually disable the verification.
Important:
In recovery mode, you cannot upgrade an XT Series using an unsigned package. You must
use a signed package to upgrade the XT Series in recovery mode, then disable the
verification and use the unsigned package in normal mode.
You can also limit the range of IP addresses allowed to upgrade the unit remotely.
Table 54: Supported Combinations with Signed/Unsigned Packages
XT Mode
Recovery Mode Normal Mode
Upgrade done by: PC/Management USB PC/Management USB/AT/WEB
A signed package:
9.0 or higher
Accepted XT >= 9.0:
Accepted
XT < 9.0: Not
accepted
Accepted XT >= 9.0:
Accepted
XT < 9.0: Not
accepted
An unsigned
package (lower
than 8.3)
XT <= 8.3.x: Accepted
XT >= 9.0: Not accepted
XT <= 8.3.x: Accepted
XT >= 9.0: Not accepted
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Before you begin
If configuring from the endpoint, you must first enable advanced configuration, as described in
Enabling Advanced Maintenance on the XT Series on page 151.
Procedure
1. Access the remote download settings. From the endpoint's main menu, select
Administrator Settings > Utilities > Remote Access > Download. From the XT Series
web interface, select Configure > Advanced > Utilities > Remote Access > Download.
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*By default, the unsigned software package is not accepted. You can force the system to accept an unsigned package
by setting “Verify Signature” to No. For more information, see Table 55: Enabling remote upgrades on page 203.
Advanced Configuration of the XT Series
August 2020 Deployment Guide for Avaya XT Series 202
Comments on this document? infodev@avaya.com