The bvoip Support Team can assist in uploading these for you if needed. They will need the phone system FQDN and Yealink phone model along with the logo image in the correct size to upload for you.
Once the bvoip Support Team receives these items, they will communicate and instruct that the device will need to be factory reset for this change to take place when completed.
Below you will find tables indicating the correct logo size specifications that are needed to upload the image to the Yealink device.
| Phone Type | Logo Display | Logo File Format | Resolution | Single File Size | Total Files Size |
| SIP-T28P | 236*82 pixel | .dob | <=236*82 2 gray scale | / | <=100KB |
| SIP-T26P | 132*64 pixel | .dob | <=132*64 2 gray scale | / | <=100KB |
| SIP-T22P | 132*64 pixel | .dob | <=132*64 2 gray scale | / | <=100KB |
| SIP-T20P | Text log | / | / | / | / |
| SIP-T48G | Wall Paper | .jpg/.png/.bmp | <=800*480 | <=5MB | <=20MB |
| SIP-T46G | Wall Paper | .jpg/.png/.bmp | <=480*272 | <=5MB | <=20MB |
| SIP-T42G | 192*64 pixel | *.dob | <=192*64 2 gray scale | / | / |
| SIP-T41P | 192*64 pixel | *.dob | <=192*64 2 gray scale | / | / |
| SIP-T29 | Wall Paper | .jpg/.png/.bmp | <=480*272 | <=5MB | <=20MB |
| SIP-T27G | 240*120 pixel | *.dob | <=240*120 2 gray scale | / | / |
| SIP-T23 | 132*64 pixel | *.dob | <=132*64 2 gray scale | / | / |
| SIP-T21P E2 | 132*64 pixel | *.dob | <=132*64 2 gray scale | / | / |
| CP860 | 192*64 pixel | *.dob | <=192*64 2 gray scale | / | / |
| SIP-T21P | 132*64 pixel | *.dob | <=132*64 2 gray scale | / | / |
| SIP-T19P | 132*64 pixel | *.dob | <=132*64 2 gray scale | / | / |
| SIP-T49G | wall paper | *.jpg/*.png/*.bmp | 1280*800 | <=5MB | / |
| Phone Model | Logo File Format | Resolution |
| T42U/T42S/T42G/T41P/T41S/T31P/T31G/T31/T30P/T30 | .dob | <=192*64 2 gray scale |
| T53W/T53/T43U | <=360*160 2 gray scale | |
| T40P/T40G/T23P/T23G/T21(P) E2/T19(P) E2 | <=132*64 2 gray scale | |
| CP920 | <=248*120 2 gray |
| Phone Model | Format | Resolution | Single File Size | Note |
| T54S/T52S/EXP50 | *.jpg/*.png/*.bmp/*.jpeg | <=4.2 megapixels | <=5MB | 2MB of space should be reserved for the phone |
| VP59/T58A/T56A/T57W/T54W/T48S/T48G/CP960 | <=2.0 megapixels | <=5MB | ||
| T46S/T46G/T29G | <=1.8 megapixels | <=5MB |