Yealink T42S

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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shown on the LCD screen. The logo screen and the idle screen display alternately.
The following shows a system logo (Yealink logo) displayed on T27P/G:
It is not applicable to T54S/T52S/T48S/T48G/T46S/T46G/T29G IP phones.
Topics
Custom Logo Picture Limit
Customizing a Logo Picture
Custom Logo Configuration
Example: Setting a Custom Logo Display
Custom Logo Picture Limit
The following table lists the supported logo picture format and resolution for each phone model.
Phone Model
Logo File Format
Resolution
T42S/T42G/T41P/T41S
.dob
<=192*64 2 gray scale
T27P/T27G
<=240*120 2 gray scale
T40P/T40G/T23P/T23G/T21(P) E2/
T19(P) E2
<=132*64 2 gray scale
Note
Before uploading your custom logo to IP phones, ensure your logo file is correctly formatted.
Customizing a Logo Picture
Yealink IP phones only support the *.dob format logo picture. Yealink provides PictureExDemo tool to
convert *.bmp format to *.dob format. You can ask the distributor or Yealink FAE for the PictureExDemo
tool.
Procedure
1. Double click the PictureExDemo.exe.