Yealink SIP-T2XP - DHCP Options

Yealink IP Phones Auto provisioning Guide
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The following figure shows a portion of a txt formatted English language file:
####################################################
## Configure the access URL of the LCD language file ##
####################################################
gui_lang.url =
If you want to modify the translation of an existing language, configure the parameter
“gui_lang.url =” in the configuration file, for example:
gui_lang.url = tftp://192.168.1.100/lang+English.txt.
During the auto provisioning process, the phone connects to the provisioning server
“192.168.1.100”, and downloads the language file “lang+English.txt”.
If you want to add a new language “Russian” to SIP-T4X IP phones, configure the
parameter “gui_lang.url =” in the configuration file, for example:
gui_lang.url = tftp://192.168.1.100/lang-Russian.txt
During the auto provisioning process, the phone connects to the provisioning server
“192.168.1.100”, and downloads the language file “lang-Russian.txt”. After update, you
will find a new language selection “Russian” on the phone user interface:
Menu->Basic->Language.
#Delete all custom languages.
gui_lang.delete = http://localhost/all
SIP-T48G/T46G IP phones also support adding a custom or modify an existing LCD
language with an X.GUI.Y.lang (e.g., 0.GUI.English.lang) formatted language file. “X” is
an integer which starts from 0. “Y” means the name of the language.
Available languages may vary between different firmware versions.
English language file name must be “lang+English.txt”.
To modify translation of an existing language, do not rename the language file.