Yealink T46G Administrator's Manual page 132

Yealink Skype for Business HD IP Phones Administrator Guide
The following shows a portion of the language pack "000.GUI.English.lang" for the phone
user interface (take T46G Skype for Business phones for example):
Save the language file and place it to the provisioning server (e.g., 192.168.10.25).
3.
Specify the access URL of the phone user interface language pack in the configuration files.
4.
If you want to add a new custom language (e.g., Guilan) to your Skype for Business phone (e.g.,
T46G), prepare the language file named as "012.GUI.Guilan.lang" for downloading. After update,
you will find a new language selection "Guilan" on the phone user interface:
Menu->Basic->Language.
Procedure
Loading language pack can only be performed using the configuration files.
Configuration File
118
<y0000000000xx>.cfg
Specify the access URL of the
phone user interface language
pack.
Parameter:
gui_lang.url
Delete custom LCD language
packs of the phone user
interface.
Parameter:
gui_lang.delete