User guide

Getting Started
19
integrated in the icon when the new language is selected.
To use the custom language for the IP phone, you also need to configure the following
parameter:
#Configure the custom language (e.g., English) for the web user interface.
lang.wui = English
#Delete all custom languages.
wui_lang.delete = http://localhost/all
Yealink IP phones allow you to customize the logo displayed on the LCD screen. Logo is
not applicable to SIP-T48G, SIP-T46G and SIP-T29G IP phones. These three IP phone
models use the wallpaper instead.
The following table lists the supported logo file format and resolution for each phone
model:
Phone Model
Logo File Format
Resolution
SIP-T42G/T41P
.dob
<=192*64 2 gray scale
SIP-T27P
.dob
<=240*120 2 gray scale
SIP-T23P/T23G/T21(P) E2
.dob
<=132*64 2 gray scale
For more information on customizing a logo file, refer to Customizing a Logo File Using
PictureExDemo on page 81.
You can customize a *.dob logo file, upload the logo file to the provisioning server and
then specify the access URL in configuration files:
####################################################
## Configure the custom Logo File ##
####################################################
#Specify the access URL of the custom Logo File.
lcd_logo.url =
For example, enter tftp://192.168.1.100/logo.dob in the lcd_logo.url = field. During
the auto provisioning process, the IP phone connects to the provisioning server
192.168.1.100, and downloads the logo file logo.dob.
To use the custom logo, you also need to configure the following parameter:
#Configure the logo mode.
#0-Disabled, 1-System logo, 2-Custom logo
For existing language files, X ranges from 1 to 11. For custom language files, X must
start from 12 Y means the language name.
To modify translation of an existing language, do not rename the language file.