Yealink SIP-T21 E2

Configuring Basic Features
283
In this example, a system logo (Yealink logo) is displayed on the image logo screen:
Logo is not applicable to SIP-T54S/T52S/T48G/T48S/T46G/T46S/T29G IP phones. These IP
phone models use wallpaper instead. For more information on wallpaper, refer to Wallpaper on
page 182.
The following table lists the supported logo file format and resolution for each phone model.
Phone Model
Logo File
Format
Resolution
SIP-T42G/T42S/T41P/T41S/CP860
.dob
<=192*64 2 gray scale
SIP-T27P/G
.dob
<=240*120 2 gray scale
SIP-T40P/T40G/T23P/T23G/T21(P) E2/
T19(P) E2
.dob
<=132*64 2 gray scale
CP920
.dob
<=248*120 2 gray scale
Note
Customizing a Logo Template File
The common picture format can be *.bmp. Yealink IP phones only support the *.dob format
logo files. Yealink provides PictureExDemo tool to convert *.bmp format to *.dob format. You
can ask the distributor or Yealink FAE for the PictureExDemo tool.
Before uploading your custom logo to IP phones, ensure your logo file is correctly formatted.