User guide

Yealink SIP-T4X IP Phones Auto Provisioning Guide
82
different states of line keys.
0-Disabled
1-Enabled
The default value is 0.
Tips
phone_setting
.backgrounds
=
Default.jpg,
1.png,
2.png,
3.png,
4.png,
5.png,
6.png,
7.png,
8.png, or
9.png
It configures the wallpaper displayed
on the phone.
Example:
phone_setting.backgrounds = 1.png
To configure a custom picture (e.g.,
custom1.png) to be wallpaper, the
value format is: Resource:custom1.png
The default value is Default.jpg.
Settings->Preferenc
e->Wallpaper
phone_setting
.show_code40
3 =
String
It configures the display message on
the LCD screen when receiving a 403
message.
If leaving the field blank, the phone
will display the value sent from the
server when receiving the 403
message.
The default value is blank.
forward.alwa
ys.enable =
0 or 1
It enables or disables always forward
feature.
0-Disabled
1-Enabled
The default value is 0.
Features->Forward
&DND->Always
Forward->On/Off
forward.alwa
ys.target =
String
It configures the target number the
phone forwards all incoming calls to.
Features->Forward
&DND->Always
Forward->Target
forward.alwa
ys.on_code =
String
It configures the always forward on
code.
Features->Forward
&DND->Always
Forward->On
Code
forward.alwa
ys.off_code =
String
It configures the always forward off
code.
Features->Forward
&DND->Always
Forward->Off
Code