Yealink SIP-T54S Administrator's Manual page 311

Web User Interface
Details of Configuration Parameters:
Parameters
phone_setting.lcd_logo.mode
Description:
Configures the logo mode of the LCD screen.
0-Off
1-System logo
2-Custom logo
If it is set to 0 (Off), the IP phone is not allowed to display a logo.
If it is set to 1 (System logo), the LCD screen will display the system logo.
If it is set to 2 (Custom logo), the LCD screen will display the custom logo (you need to
upload a custom logo file to the IP phone).
Note: It is not applicable to SIP-T54S/T52S/T48G/T48S/T46G/T46S/T29G IP phones.
Web User Interface:
Features->General Information->Use Logo
Phone User Interface:
None
lcd_logo.url
Description:
Configures the access URL of the custom logo file.
Specify the access URL of the
custom logo file.
Parameter:
lcd_logo.url
Delete all custom logo files.
Parameter:
lcd_logo.delete
Configure the logo shown on the
idle screen.
Upload the custom logo file.
Navigate to:
http://<phoneIPAddress>/servlet?
p=features-general&q=load
Permitted Values
0, 1 or 2
URL within 511
characters
Configuring Basic Features
Default
0
Blank
285