How To Do A Downgrade - Avaya B179 SIP Installation And Administration Manual

Avaya B179 SIP Conference Phone
Firmware binary

Place the firmware binary file on the Provisioning server.
 Create a Firmware metadata file according to page 49 and place it on the File server
address specified above.
 Depending on the server used, and the security settings, there might be necessary to
add the file type .kt to the MIME settings on the server. This is easily checked by trying to
download the kt file from a web browser.
FALL BACK SERVER SUPPORT
Avaya B179 registers concurrently with the primary and secondary proxy servers. The phone
also supports provisioning of a third-party fall back server when a connection with the
primary or secondary server cannot be established. You can configure the third-party server
details by using the web interface and the configuration file.
UPGRADING IN IP OFFICE
Avaya B179 supports the IP Office check-sync message with file ID 4 for firmware upgrades.
Please see the IP Office documentation for more information.

HOW TO DO A DOWNGRADE

The only way to "downgrade" – install a previous version of the firmware – is to restore the
firmware to factory default and then install the preferred firmware.
Installation and Administration Guide
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