Avaya IX Room Systems XT Series How to use

© 2019 Avaya Inc. All rights reserved.
Release Notes for Avaya IX Room Systems
XT Series
Version 9.2.1.10
For Avaya XT7000 Series
For Avaya XT5000/XT4x00/XTE240 Series
Avaya Equinox® Solution 9.1.9
September 2019

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Version 9.2.1.10
September 2019
http://support.avaya.com

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Release Notes for Avaya XT Series Avaya XT Series Highlights | 3
Table of Contents
Avaya XT Series Highlights..................................................................................................4
Supported Languages ........................................................................................................................................4
Web Interface Management ...............................................................................................................................4
Advanced Settings Menu....................................................................................................................................5
What’s New............................................................................................................................6
Avaya IX Tracking Camera TC220.....................................................................................................................6
Setup Wizard Enhancements.............................................................................................................................9
Enhancements..................................................................................................................................................17
Control API Extension (AT Commands)...........................................................................................................18
Software Upgrade & Downgrade .......................................................................................19
Signed Software Packages...............................................................................................................................19
How to Upgrade XT Series to 9.x Releases.....................................................................................................20
Downgrading from this Release .......................................................................................................................21
Integrating with Other Components..................................................................................22
Resolved Issues..................................................................................................................23
Known Issues......................................................................................................................24
Common Remote-Control Shortcuts.................................................................................33
Avaya Policy for GDPR.......................................................................................................37
Additional References ........................................................................................................38
Finding Customer Documentation....................................................................................................................38
Copyright, Licensing and Credits......................................................................................41

© 2019 Avaya Inc. All rights reserved
Release Notes for Avaya XT Series Avaya XT Series Highlights | 4
Avaya XT Series Highlights
Avaya offers a complete range of advanced HD video conferencing room systems, stand alone or
part of Avaya Equinox® Solution.
Our full range of dedicated Avaya IX Room System video conferencing endpoints lets you
experience exceptional video conferencing in any environment. Avaya IX Room System endpoints
leverage leading, powerful video communications technology to deliver an unparalleled video
collaboration experience, from immersive Telepresence, to conference room systems and all-in-
one Executive endpoints.
Our Avaya IX Room System endpoints incorporate the latest video communications technology,
including dual 1080p/60fps video channels, H.265 and H.264 High Profile for bandwidth efficiency,
H.265 and H.264 Scalable Video Coding for error resiliency, and Apple iPad/iPhone device
control.
The Avaya XT Series includes a full range of room, personal and group systems.
This section details useful information on the following items:
•Supported languages
•Managing the system through the web interface
•Enabling the Advanced Settings system menu in the graphical interface
Supported Languages
Avaya XT Series supports the following 25 languages on the endpoint and its web interface:
English, French, Spanish, Deutsch, Italian, Portuguese, Norwegian, Swedish, Chinese (Mandarin),
Japanese, Russian, Korean, Czech, Magyar, Polish, Finnish, Thai, Traditional Chinese, Turkish,
Arabic, Farsi, Serbian, Bahasa Indonesia, Slovak, Hebrew.
Each web client can select the interface language independently from the language used on the
graphical user interface of the endpoint (GUI).
Web Interface Management
Avaya XT Series endpoints can be managed from the XT Graphical User interface ([GUI]) or using
a standard web browser ([WEB]), via HTTPS (default) or HTTP.
To login into the Codec Unit with a web browser, browse to https://<XT IP Address >
The default credentials are:
User: Admin
Password: 1234
All the paths specified in this release note with a notation with the [WEB]prefix, like
[WEB]ADMINISTRATOR SETTINGS>…,
refer to an XT Web interface menu.
Important
•You need to press the 'Save' button to apply changes done to a configuration via the
Web Interface, otherwise your changes will not be applied.

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Release Notes for Avaya XT Series Avaya XT Series Highlights | 5
Save Settings in the Web Interface
Advanced Settings Menu
To enable Advanced Settings in the endpoint’s Main menu (Graphical User Interface, GUI), set
[GUI] >CONFIGURE >GENERAL >SHOW ADVANCED SETTINGS:YES
Important
•Changes to settings done via the Graphical Interface are automatically saved and
applied when exiting the menu page.
•The XT Graphical Menu items available in the path [GUI] >CONFIGURE >ADVANCED can
be found also inside the XT Web Interface Menu, tab 'Administrator Settings'. This
tab is always enabled in the Web Interface.
[GUI] >CONFIGURE >ADVANCED>…
[WEB]ADMINISTRATOR SETTINGS>…

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Release Notes for Avaya XT Series What’s New | 6
What’s New
This release 9.2.1.10 introduces a few new features and enhancements, described in the following
sections, respect to previous Avaya XT Series GA version, v9.2.0.215
Avaya IX Tracking Camera TC220
Avaya IX Tracking Camera TC220 is the Avaya solution for large meeting rooms, directing the
meeting in intelligent way, and focusing on the active speaker.
Thanks to the combination of audio tracking and face recognition, it properly identifies the active
speaker (or speakers) position, and thanks to the dual cameras it handles fluidly the transition
from one view to the other.
Tracking Camera Setup and Placement
The Avaya TC220 Tracking Camera (1) must be connected to an XT Series Codec Unit as main
camera, as described below.
Important:
•Before connecting cables, assure that the both the Camera and the Codec Unit are
turned off.
•Using the HDMI cable (2), provided with the camera:
oinsert it in the HDMI-OUT connector (6) of the TC220 Camera.
oinsert it in the HD1 input of XT Series Codec. Please note the placement of
the HD1 input in the XT7000 series.
•Using the VISCA and Power Cable (3), provided with the Codec Unit:
oInsert the 8-pin connector in the TC220 Camera RS-232 socket (4)
oInsert the power connector in the TC220 Camera DC IN 12 V socket (5)
oInsert the VISCA connector to the XT Series Codec VISCA socket.
•Assure that the power switch (ON/OFF selector) on the TC220 Camera is ON.

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Release Notes for Avaya XT Series What’s New | 7
•Turn on the XT Series Codec.
Please note: the camera placement must be at 1.4-1.8 meters height from the floor, while the
suggested placement respect to the room table is as depicted below.
Notice that the centre of the camera should be moved slightly on the left respect to the centre of
the table.

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Release Notes for Avaya XT Series What’s New | 8
Camera Configuration in the Codec
The camera is automatically recognized when properly connected to the codec with the VISCA
and HD cables as explained above.
In any case, you can verify the camera configuration as follows:
•Under I/O connections > Cameras> General

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Release Notes for Avaya XT Series What’s New | 9
oHD1 is selected as default.
oDriver Mode is Automatic
•Under HD1 camera config:
oCheck that the detected camera driver is XTSeries TC220 Camera. If the driver
mode was set as Manual, select this diver.
oCheck that the tracking is enabled. If the tracking is disabled, only the rightmost
camera will be used and can be controlled manually (for PTZ and presets). If the
tracking is enabled, manual PTZ and preset commands are ignored.
Important
•The TC220 camera cannot be cascaded to other cameras in this release (Visca
cable connection from the first HD camera to the TC220 camera is not supported).
•To use the TC220 camera as a second HD camera on XT7100, with autotracking
enabled, do the following:
oPower the TC220 camera with its own power supply.
oAssure that the autotracking is enabled in the camera. This is the default
when the camera is powered on.
oConnect the TC220 to the HD2 camera input of XT7100.
oWhen the TC220 is used as second HD camera, it will not stop following the
active speaker when the camera is not selected, or the system is in standby.
Setup Wizard Enhancements
When a new Avaya XT Series endpoint is installed, a quick setup wizard is displayed to manually
configure some needed parameters (for instance GK address/E.164 or SIP Server address with
credentials), in addition to other user preferences like displayed endpoint name and UX language.
With this release, Avaya XT Series endpoints can be auto-configured, up and running, with
minimal user intervention.

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Release Notes for Avaya XT Series What’s New | 10
In addition to manual setup, and to an automatic setup at first boot based on Equinox
Management Endpoint Auto-Provisioning feature available since previous release, this release
adds the possibility to easy configure the endpoint when part of an Equinox Deployment with auto-
configuration enabled based on DNS service discovery.
If your Equinox Deployment does not support this feature, you can still configure your endpoint at
first boot through Equinox Management (with a pre-provisioning or post provisioning code), or any
time manually.
At first boot, the user will see the below screen on the UX interface of the endpoint.
You can choose the preferred language for the device.
If no Ethernet cable is connected, you can also configure your Wi-Fi Network.
Initial Setup Wizard –Choose your Language
•To configure your Wi-Fi, press Wi-Fi and select you network. See Network
Connectivity section for more details.
•Once network connectivity is available, press Next.
oYou can also proceed with Manual setup without network connectivity.
The initial wizard will present three choices:
Initial Setup Wizard –Three Options
oEasy to Start: choose this option if there is an Equinox Deployment with auto-
configuration enabled (via DNS Services) in your company. In this case you will
be required to enter your personal credentials, or the phone number (extension)
and password assigned to your video endpoint (same as an Avaya
phone/Equinox Client). In this case, the endpoint will receive from a network
server the information for SIP configuration and other preferences.
oAuto Provisioning: chose this option if your endpoint is fully managed by
Equinox Management, and you received a Service Code for it. In this case your
endpoint is connected to the corporate directory, can automatically receive
upgrades, and can be fully provisioned as an H.323 and/or SIP endpoint. This
option is available only at first setup or when the device is reset to factory
settings.
oManual Setup: Chose this option if you can insert manually the information to
fully configure your endpoint, including your network preferences. You can also
use this option to manually adjust already configured preferences.

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Release Notes for Avaya XT Series What’s New | 11
Easy to Start –Auto-Configuration for Equinox Endpoints
When the endpoint is part of an Avaya Equinox Deployment supporting auto-configuration via
DNS service discovery, it can be easily auto-configured as a SIP video endpoint.
The automatic configuration process automatically configures the device settings related to SIP
configurations when the device is booted for the first time, or any time the Setup Wizard is
activated.
Users can configure an endpoint automatically by using their email address or the company
domain to retrieve the available Equinox Deployment in their company. Follow those steps and
chose “Next” to progress:
•Chose Easy to Start
•Enter your email address, including the company domain, or your company domain
only (i.e. @yourcompanydomain)
•Chose the Equinox Deployment environment you want to join.
•According to what is configured in the chosen environment, you can be asked for your
personal credentials (username/password) or for a phone-like SIP extension (phone
number) and password.

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Release Notes for Avaya XT Series What’s New | 12
Easy to Start Sequence
•According to what is configured in the chosen environment you can be asked for your
personal credentials (username/password) or for a phone-like SIP extension and
password.

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Release Notes for Avaya XT Series What’s New | 13
Easy to Start Sequence –Personal Credentials Required
•Once completed, your endpoint will receive the SIP configuration and some other
settings from the configuration server auto-discovered with this procedure.
Easy to Start Sequence –Configuration Completed
Important
•Only SIP parameters are configured by this procedure in this release.
•If you want to see your Exchange Calendar on the endpoint, you need to configure it
separately in this release. See Integration with Microsoft Exchange Calendar.
Cloud Management and Auto-Provisioning
The input of a numeric code at the first start-up allows configuring your endpoint automatically with
a pre-provisioned profile created by your IT Administrator using Avaya Equinox® Management
available as part of Equinox Solution 9.0.0 or higher.
When using an Avaya IX video endpoint in a company where Avaya Equinox® Management is
available, the administrator can now enable the Auto-Provisioning feature in the Avaya Equinox®
Management Settings.
Auto-Provisioning an endpoint means to define a set of parameters for it in Avaya Equinox®
Management, even before it is connected to the network (at home or in the company premises),
and have the endpoint get these parameters automatically from Avaya Equinox® Management at
first start-up. Once provisioned, the endpoint will be managed by the Avaya Equinox®
Management, which can change the endpoint configurations and preferences at any time.

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Release Notes for Avaya XT Series What’s New | 14
Avaya Equinox® Management with Auto-Provisioning Server Code
In this way the administrator can easily configure a provisioning profile for any Avaya IX endpoint
even before it is installed. No manual configuration is required on the endpoint for common
parameters.
Important
•This feature will be supported for an endpoint installed in any location, provided that
an Avaya Equinox® Management compatible version is available for association with
the endpoint, that the Auto-provisioning Endpoint feature is enabled on Avaya
Equinox® Management, that the endpoint is connected to the Internet and that your
DHCP server is able to assign a valid DNS address to the endpoint.
•Please refer to Avaya Equinox® Management documentation for further details
about configuring this feature.
Important
•The endpoint Auto-Provisioning Service may be interrupted, including for
maintenance, repairs, upgrades, or equipment or network failures. We may
discontinue certain features and the support for certain video devices at any time.
Events beyond our control may affect our service, such as force majeure events.
Pre-Provisioning an Avaya IX Endpoint
To define a pre-provisioning parameter for an endpoint, click on the Add button in the Avaya
Equinox® Management Endpoints tab, and choose Pre-Provisioning an Endpoint.
Add a Pre-Provisioned Endpoint
A Service Code corresponding to the pre-provisioned endpoint profile is generated.
You can then specify a set of basic/advanced settings for an endpoint.

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Release Notes for Avaya XT Series What’s New | 15
Pre-provisioned Endpoint's Service Code
Once they are added, Pre-provisioned endpoints are marked with a blue "clock" icon in the Avaya
Equinox® Management list. This icon means that a profile is ready to be applied to an endpoint
with a certain Service Code, but the endpoint did not yet connect to receive the provisioning
profile.
Pre-provisioned Endpoints Listed
When the pre-provisioned Endpoint starts for the first time, you will be invited by a guided
procedure to choose the preferred language and then to enter your Service Code
Insert the service code in the Quick Setup Wizard
Pre-configuration Found
If the service code is correct, the pre-provisioned name for your endpoint is shown and you can
continue the automatic configuration. If the service code is not correct or you do not accept the
pre-configuration, you can go back to previous step and proceed with a manual configuration.

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Release Notes for Avaya XT Series What’s New | 16
Important
•Once your endpoint has been successfully provisioned, the Avaya Equinox®
Management mode will be marked as “Cloud”
•When managed in “Cloud mode”, the endpoint is connected using a secure web
socket to Avaya Equinox® Management for services like configuration, LDAP
entries, software upgrade, scheduling and meeting management (meeting roster and
similar features).
Post-Provisioning an Endpoint
If you don't have the code for a specific endpoint, because it has not yet been provisioned in
Avaya Equinox® Management, you can insert the Server Service Code of your Avaya Equinox®
Management, and leave the Endpoint Service Code digits empty or all zeroes (post-provisioning
code). This feature is called Post-Provisioning. In this case the Avaya Equinox® Management
Admin will be notified that an endpoint, not yet provisioned, has been added to the list of the
manageable endpoints and can be configured any time later.
This way, an IT administrator can plug all the endpoints in all the company conferencing rooms,
just inserting the same post provisioning code; then set a mnemonic name for the endpoint and
configure it later in Avaya Equinox® Management, where it will be displayed with a red clock icon
near the name.
You can then specify a set of basic/advanced settings for an endpoint or delete the endpoint if you
don't want to provision it any longer.
Post-provisioned Endpoint Listed
Auto Provisioning FAQ
[Q]What is the default for Auto-provisioning in Avaya IX video endpoints?
[A]The default depends on the installation of the endpoint and if it was already managed by an
Avaya Equinox® Management entity. If the endpoint is a newly installed endpoint or it was not
managed, the default will be “Cloud”; otherwise it will be “Local”. The Local Mode will be
automatically changed to “Cloud” when the Avaya Equinox® Management entity managing the
endpoint is updated to solution release 9.0, if Auto-Provisioning is enabled.
[Q]How to check if my endpoint is managed through the cloud or not?
[A]Check Configure>Advanced>Utilities>Remote Access>Avaya Equinox® Management
•Mode: Cloud (Connection using auto-provisioning)/ Local (Connection to Scopia
Management 8.3 version or earlier, or Endpoint Auto-provisioning not enabled in
Equinox Management)
If the connection Mode is “Cloud”, your endpoint is connected to Avaya Equinox® Management
using a secure web socket. Status of the connection is visible in the endpoint Web home page or
in System Status> More.

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Release Notes for Avaya XT Series What’s New | 17
Cloud Mode –Connected
[Q]What happens if I load factory defaults on a provisioned endpoint?
[A]Your endpoint will remember the Service Code inserted for Provisioning and will propose it
again (only the first 5 digits are needed). Just press “Next” in the initial wizard to have you’re the
endpoint configured again with the same Avaya Equinox® Management.
[Q]How can I associate my endpoint to a different Management Server with auto provisioning?
[A]Ask your administrator to remove your endpoint from the Management Server and to add it to a
new Management Server. Once you received a new Service Code, load Factory defaults on your
endpoint. You will be prompted to insert the Service Code for the Management Server. Insert the
new one you received.
[Q]How can I associate my endpoint to a different Management Server manually?
[A]Ask your administrator to remove your endpoint from the first Management Server and to add it
to a new Management Server manually. You will be disconnected from the first server and
connected automatically to the second one.
[Q]How can I force my endpoint to forget the assigned Management Server Service ID?
[A]Configure your endpoint for “Local” mode with a manual IP empty address (0.0.0.0) or with a
different Management Server.
[Q]I have a valid service code for my endpoint, but the initial Wizard keeps saying that the
Management Server is not available…? What can I do?
[A]Check that your endpoint is connected to the network. Check that it received a valid IP address
and a valid DNS server address from the DHCP server on your network. Then connect to the
endpoint Web Server using any browser (see “Web Interface Management section”) and browse
to [WEB]DIAGNOSTICS>NETWORK>PING.Ping “support.avaya.com” or a similar well-known web URL. If
it is not reachable, your endpoint is not connected to the internet or the configured DNS is not
valid. If the above URL is reachable, check that the FQDN configured in Avaya Equinox® Management is
reachable.
[Q]What happens if my endpoint is managed by Equinox Management and I run the Quick Setup
Wizard and choose an Equinox Environment different from the one in which my endpoint is
managed, or I change the settings manually?
[A] After a while, Equinox Management will detect the changes and show an alert for your
endpoint in the dashboard. A similar alert is displayed if you change some settings manually after
your endpoint is provisioned. It is possible for the Equinox Management administrator to change
the endpoint settings any time while the endpoint is managed.
•
Enhancements
This release introduces a few enhancements and fixings
•Added the possibility to choose as Home Screen Background the Calendar page and to
hide the Calendar Panel in Home page (only if the Calendar is enabled)
o[GUI] CONFIGURE>ADVANCED >SYSTEM>CUSTOMIZATION
o[WEB]ADMINISTRATOR SETTINGS>SYSTEM>CUSTOMIZATION
•Fixings for join meeting alerts and messages.
•When making SIP direct calls to a destination that has been resolved with different IP
addresses, the system now tries to connect to the next IP address in case the call to the
previous one fails, as already available for H.323 calls. Moreover, the system tries all
available transport protocols, in this order:
If SIP "Outbound Transport Call" field is set to:

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Release Notes for Avaya XT Series What’s New | 18
- TLS, the system will try TLS -> TCP -> UDP;
- TCP, the system will try TCP -> UDP
- UDP, the system will try only UDP
•In this way, the system will make DNS resolution to find the IP addresses related to the
transport protocol used. If none of them is reachable using that transport protocol, the
system will switch to the next transport protocol, making a new DNS resolution.
•Improved SIP presentation interoperability with ZOOM platforms: with previous releases, it
could happen your device receives the presentation as a mixed stream together with the
live video (AKA Gallery Layout). To have it as a second stream:
oPress "1" via DTMF code to access the menu.
oPress "0" to access more options.
oPress "1" to toggle H.239 or BFCP for dual-screen.
•Improved H323 video presentation interoperability with CISCO VCS ExpressWay: the
system on a private network registered to VCS through H.460 now can receive the video
presentation when a remote endpoint stops and starts presenting more than one time.
•Some optimization for the Start-up Wizard
•Added predefined SIP dial mappings for Zoom for integration with Exchange Calendar.
They can be changed to H.323 if needed.
•Added automatic integration for any Exchange Calendar invitation containing “sip:” or
“h323:” URI Schemes in the location or in the body.
Control API Extension (AT Commands)
AT commands can be used to control XT Series or XT Series devices.
The following commands have been extended or added since last major API documentation
release.
For full documentation, refer to https://support.avaya.com/downloads/download-
details.action?contentId=C20143693548450_0&productId=P1430
Table 1: Recently Added or Modified Control API Commands
Version
New/
Extended
Command/
Indication
Description
CU 10.1.0
XT 9.2
Extended
SW
Command to emulate go back to home page

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Release Notes for Avaya XT Series Software Upgrade & Downgrade | 19
Software Upgrade & Downgrade
This section explains how to upgrade or downgrade XT Series software.
Signed Software Packages
Since release 9.0, XT Series software packages are signed by an Avaya Certificate Root Authority
recognized by the XT Series.
Only verified signed software packages will be accepted by XT Series once upgraded to this
release.
A software package will be installed only if XT verifies that:
•The software package is signed by Avaya IT Root Authority and produced by an authorized
build server.
•The software package content is not tampered or changed in any way.
For this reason, the XT Series upgraded to 9.0 releases will no longer accept by default software
packages which have not been signed.
This means that to downgrade XT Series to a previous version you must manually disable the
verification of the downloaded package signature. Browse to:
[GUI] CONFIGURE >ADVANCED>UTILITIES>REMOTE ACCESS>DOWNLOAD
[WEB]ADMINISTRATOR SETTINGS>UTILITIES>REMOTE ACCESS>DOWNLOAD
oVerify Signature: Yes*/No.
Important
•The Verify Signature option does not apply to recovery mode. It is not possible to
force an XT version 9.0 or higher to accept an unsigned package when in recovery
mode. See Known Issues, “Software Upgrade & Downgrade” section and the table
below.
Important
•The signed package version cannot be uploaded directly on an XT running a version
8.3.x or earlier by USB or XT Web interface or AT interface or iView. You need to
use a special unsigned package in this case. Ask Customer support to receive an
unsigned package.
Table 2: XT Software Update Verification Table
XT Mode
Recovery Mode
Normal Mode
SW update done by
PC
USB
PC/Management
USB/AT/WEB
Unsigned package
(8.3.x)
XT <= 8.3.x:
accepted
XT <= 8.3.x:
accepted**
XT <= 8.3.x:
accepted
XT <= 8.3.x:
accepted
XT >= 9.0:
not accepted
XT >= 9.0:
not accepted
XT >= 9.0:
not accepted*
XT >= 9.0:
not accepted*
Signed package
(9.0 or higher)
accepted
XT < 9.0:
not accepted
accepted
XT < 9.0:
not accepted
XT >= 9.0:
Accepted
XT >= 9.0:
accepted
*By default, an unsigned software package is not accepted. You can force the system to accept an
unsigned package by setting “Verify Signature” to No.
** XT7000 does not accept the package due to memory capacity.

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Release Notes for Avaya XT Series Software Upgrade & Downgrade | 20
How to Upgrade XT Series to 9.x Releases
Release 9.x improves security when upgrading. Since 9.0 version, XT Series software packages
are signed by an Avaya Certificate Root Authority recognized by the XT Series. Only signed
packages will be accepted by XT Series once upgraded to this version (see XT Software Update
Verification Table).
Software upgrade packages named XT5000_Vx_y_z.exe can be used only to upgrade Avaya
XT5000/XT4300/XTE240 Series Codec Units.
Software upgrade packages named XT7000_Vx_y_z.exe can be used only to upgrade Avaya
XT7000 Series Codec Units.
To upgrade the software of an Avaya XT Series Codec Unit:
•Save the XTn000_vx.y.z.exe file containing the XT Series Software in your Windows
PC
•Verify that the PC is connected to the network in wired mode (otherwise the upgrade
process can be very slow when using a wireless connection) and that it can ping XT.
•Double click the version .exe file. Below application will be launched.
•Insert IP address of the XT to upgrade in the Codec Unit IP address field.
•Press “Start” button in the app.
Software Upgrade Application
•Do not turnoff or unplug XT, until it completes the upgrade.
•The application will signal that the software package transfer is completed. Wait until
the XT applies the updates contained in the package and restarts, by checking the
progress on XT’s graphical interface (monitor screen).
•This procedure is completed when you see the initial graphical menu displayed
continuously for at least one minute after a restart.
•If the XT does not restart but it shows an indication to repeat the upgrade, press the
“Start” button again.
End Upgrade Message
Caution
•Do not turn off the system until the upgrade procedure is completed.
•If the upgrade procedure is interrupted for any reason, do not restart the Codec Unit
but repeat the procedure as suggested by the Codec User Interface.
•The system LED may blink repeatedly while upgrading.
•If you are upgrading from a 3.0/3.1 version of XT5000/XT4000, the upgrade
procedure may reboot more than once while upgrading. A 30 to 40-second interval
may occur between the reboots.
•If the GLAN interface is not reachable any more, put the .exe upgrade package into
a formatted USB key and insert it into the upper USB socket.
Important
•Since version 9.2 is a Major Release for Avaya XT Series, a new license might be
required for this upgrade if the endpoint is not under Maintenance Contract.