Yealink IP Phones Auto provisioning Guide
14
The following table lists the logo file format and resolution for each phone model:
Phone Model
Logo File Format
Resolution
SIP-T28P
.dob
<=236*82 2 gray scale
SIP-T26P
.dob
<=132*64 2 gray scale
SIP-T22P/T21P/T19P
.dob
<=132*64 2 gray scale
Ask the distributor or Yealink FAE for the logo file, or you can customize a *.dob logo file.
Upload the logo file to the provisioning server and then specify the access URL in the
configuration file:
####################################################
## Configure the access URL of the Logo File ##
####################################################
#(For SIP-T2xP IP phones except SIP-T20P IP phone)
lcd_logo.url =
For example, enter “tftp://192.168.1.100/logo.dob” in the “lcd_logo.url =” field. During
the auto provisioning process, the phone connects to the provisioning server
“192.168.1.100”, and downloads the logo file “logo.dob”.
To use the custom logo for SIP-T2xP (except for SIP-T20P) and SIP-T19P IP phones, you also
need to configure the following parameter:
#Configure the logo mode (For SIP-T2xP and SIP-T19P IP phones except SIP-T20P IP
phones).
#0-Disabled (Except for SIP-T28P IP phones), 1-System logo, 2-Custom logo
phone_setting.lcd_logo.mode = 2
To configure a text logo for SIP-T20P IP phones, you need to configure the following
parameter:
#Enable or disable a text logo. 0-Disabled, 1-Enabled
phone_setting.lcd_logo.mode = 1
#Configure a text logo
phone_setting.lcd_logo.text =Yealink
After auto provisioning, you will find that the custom logo or text logo appears on the
LCD screen.
#lcd_logo.delete = =http://localhost/all
#Delete all custom logo files (not applicable to SIP-T20P IP phones)
lcd_logo.delete =
For more information on customizing a logo file, refer to
Customizing a Logo File Using
PictureExDemo
on page
60
.
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