Yealink T40G Administrator's Guide

Phone Customization
101
Parameter
wui_lang.delete
<y0000000000xx>.cfg
Description
It deletes the specified or all custom web language packs and note language packs of
the web user interface.
Permitted
Values
http://localhost/all or http://localhost/ Y.name.js
Default
Blank
Example: Setting a Custom Language for Phone Display
The following example shows configuration for uploading custom language files
“015.GUI.English_15.lang” and “016.GUI.English_16.lang”, and then specify “015.GUI.English_15.lang” to
display on the phone user interface. These language files are customized and placed on the provisioning
server “192.168.10.25”.
Example
gui_lang.url= http://192.168.10.25/015.GUI.English_15.lang
gui_lang.url= http://192.168.10.25/016.GUI.English_16.lang
static.lang.gui=English_15
After provisioning, text displayed on the phone user interface will change to the custom language you
defined in “ 015.GUI.English_15.lang” . You can also find a new language selection“ English_15 ” and
“ English_16 ” on the IP phone user interface: Menu->Basic->Language.
Contrast
Contrast determines the readability of the texts displayed on the LCD screen. Adjusting the contrast to a
comfortable level can optimize the screen viewing experience.
You can adjust the contrast for T40P/T40G/T27P/T27G/T23P/T23G/T21(P) E2/T19(P) E2 IP phones, or for
expansion module EXP20 (connected to T29G/T27P/T27G IP phones), EXP40 (connected to
T48S/T48G/T46S/T46G IP phones).
Topic
Contrast Configuration
Contrast Configuration
The following table lists the parameters you can use to adjust contrast for the phone.
Parameter
phone_setting.contrast
<y0000000000xx>.cfg

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries