Enabling And Securing Upgrades - Avaya XT Series Deployment Manual

Advanced Configuration of the XT Series
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
Upgrade done by:
A signed package:
9.0 or higher
An unsigned
package (lower
than 8.3)
Before you begin
If configuring from the endpoint, you must first enable advanced configuration, as described in
Enabling Advanced Maintenance on the XT Series
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.
6
*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
August 2020
Recovery Mode
PC/Management USB
Accepted XT >= 9.0:
Accepted
XT < 9.0: Not
accepted
XT <= 8.3.x: Accepted
XT >= 9.0: Not accepted
Deployment Guide for Avaya XT Series
Comments on this document? infodev@avaya.com
Normal Mode
PC/Management
Accepted
XT <= 8.3.x: Accepted
XT >= 9.0: Not accepted
on page 151.
Table 55: Enabling remote upgrades
USB/AT/WEB
XT >= 9.0:
Accepted
XT < 9.0: Not
accepted
6
on page 203.
202