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Logo and wallpaper on Yealink phones

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Put your business logo or a wallpaper on Yealink phone screens, by hand or through auto-provisioning.

You can show your business logo or a wallpaper on most Yealink phones. Colour-screen phones use a normal image file. Phones with a black and white screen need a special grayscale .dob file. Some models don’t support a custom logo at all.

1. Check what your phone needs

Section titled “1. Check what your phone needs”
Model File format Maximum size (pixels) Colour
T19P, T19P E2, T21P, T21P E2, T22P, T23, T23G, T23P, T26P, T40G, T40P .dob 132 × 64 2-colour grayscale
T27G .dob 240 × 120 2-colour grayscale
T28P .dob 236 × 82 2-colour grayscale
T30, T30P, T31, T31G, T31P, T41P, T41S, T42G, T42S, T42U, CP860 .dob 192 × 64 2-colour grayscale
T43U, T53, T53W .dob 360 × 160 2-colour grayscale
CP920 .dob 248 × 120 2-colour grayscale
T29, T29G, T33, T46G, T46S, T54S, T54W .jpg, .png or .bmp 480 × 272 16-bit colour
T48G, T48S, T57W .jpg, .png or .bmp 800 × 480 16-bit colour
T52S, EXP50 .jpg, .png or .bmp 320 × 240 16-bit colour
T49G .jpg, .png or .bmp 1280 × 800 16-bit colour
T56A, T58A, VP59 .jpg, .png or .bmp 1024 × 600 16-bit colour
CP960 .jpg, .png or .bmp 720 × 1280 16-bit colour

Colour images can be up to 5 MB. Grayscale files for the T22P, T26P and T28P can be up to 100 KB.

2. Make the image

Section titled “2. Make the image”

Use any image editor, such as Paint.NET or Photoshop.

Colour screens:

  1. Create a new image at the exact size for your model.
  2. Paste your logo in, keeping the canvas size, and position it.
  3. Save it as a PNG.

Black and white screens:

  1. Create a new image at the exact size for your model.
  2. Paste your logo in, keeping the canvas size, and position it.
  3. Convert it to black and white.
  4. Save it as a BMP.
  5. Convert the BMP to .dob with Yealink’s logo conversion tool (PictureExDemo.exe). If you don’t have the tool, ask the support team. In the tool, click Add, choose your BMP, then click Convert. The tool usually doesn’t show a message when it’s done. The .dob file is saved in the adv folder next to the tool.

3. Upload it to the phone

Section titled “3. Upload it to the phone”
  1. Type the phone’s IP address into a web browser (press OK on the phone to see it) and sign in. The default username and password are both admin.
  2. Find the logo or wallpaper upload. On older models such as the T28P, it’s under Phone › Features › Upload Logo.
  3. Click Browse, choose your file, click Upload, then Confirm.

Or push it with auto-provisioning

Section titled “Or push it with auto-provisioning”

For auto-provisioned phones, put the image file somewhere the phones can download it from (a web server on your network or online). Then add these lines to Advanced CFG configuration in each phone’s SIP device in PBX › Devices, and apply the configuration.

Colour-screen phones (for example T29G, T46G, T46S, T48G, T48S, T52S, T54S, T54W, T57W):

wallpaper_upload.url = <web address of the folder>/<file name>
phone_setting.backgrounds = <file name>

Black and white phones (for example T19P, T21P, T23G, T23P, T27G, T40G, T40P, T41P, T41S, T42G, T42S, T53):

lcd_logo.url = <web address of the folder>/<file name>.dob
phone_setting.lcd_logo.mode = 2

To turn the logo off again, use phone_setting.lcd_logo.mode = 0.

Check it works

Section titled “Check it works”

Restart the phone. The logo or wallpaper shows on the idle screen.

Section titled “Related”