Check the available memory size for the image files using the show application-memory command. If the memory size is smaller than the combined sizes of the image files for the phones, proceed to step 2, otherwise proceed to step 5.

Set the memory size for the image files using the ip tftp-server file-system size command.

For example:

Gxxx-001(super)# ip tftp-server file-system-size 12228
To change ip tftp-server file system size, copy the running configuration to the start-up configuration file, and reset the device
Gxxx-001(super)

Copy the running configuration to the start-up configuration using the copy running-config startup-config command.

For example:

Gxxx-001(super)# copy running-config startup-config
Beginning copy operation ................... Done!

Reset the Branch Gateway using the reset command.

For example:

Gxxx-001(super)# reset
This command will reset the device
*** Reset the device *** - do you want to continue (Y/N)? y

Resetting the device...

From the Avaya Support website, download the desired phone upgrade files (script files, boot image files, phone application image files) to a remote FTP server at IP address 192.168.49.10.

Copy the script files for the 46xx IP phone family using the copy ftp phone-script command.

For example:

Gxxx-001(super)# copy ftp phone-scriptA 46xxupgrade.txt 192.168.49.10
Confirmation - do you want to continue (Y/N)? y

Username: root
Password:
Beginning download operation ...

This operation may take up to 20 seconds.
Please refrain from any other operation during this time.
For more information , use 'show download phone-script-file status' 
command
Gxxx-001(super)#
Gxxx-001(super)# copy ftp phone-scriptB 46xxupgrade.txt 192.168.49.10
Confirmation - do you want to continue (Y/N)? y

Username: root
Password:
Beginning download operation ...

This operation may take up to 20 seconds.
Please refrain from any other operation during this time.
For more information , use 'show download phone-script-file status' 
command
Gxxx-001(super)#

Copy the boot image files for the Avaya 4602 IP phone using the copy ftp phone-image command.

For example:

Gxxx-001(super)# copy ftp phone-imageA pub\4602dbte1_8.bin 192.168.49.10

Username: root
Password:
Beginning download operation ...
This operation may take up to 20 seconds.
Please refrain from any other operation during this time.
For more information , use 'show download phone-image-file status' 
command
Gxxx-001(super)# copy ftp phone-imageB pub\4602sbte1_8.bin 192.168.49.10

Username: root
Password:
Beginning download operation ...
This operation may take up to 20 seconds.
Please refrain from any other operation during this time.
For more information , use 'show download phone-image-file status' 
command

Copy the phone application image files for the 4602 IP phone type DEF4602D using the copy ftp phone-image command.

For example:

Gxxx-001(super)# copy ftp phone-imageC pub\4602dape_8.bin 192.168.49.10

Username: root
Password:
Beginning download operation ...
This operation may take up to 20 seconds.
Please refrain from any other operation during this time.
For more information , use 'show download phone-image-file status' 
command
Gxxx-001(super)# copy ftp phone-imageD pub\4602sape_8.bin 192.168.49.10

Username: root
Password:
Beginning download operation ...
This operation may take up to 20 seconds.
Please refrain from any other operation during this time.
For more information , use 'show download phone-image-file status' 
command

Reset the phones and wait for the installation to be completed.