Yealink SIP-T54S Administrator's Manual page 815

Parameters
X ranges from 1 to 4.
For ext keys:
For SIP-T54S/T52S:
X ranges from 1 to 3, Y ranges from 1 to 60.
For SIP-T48G/T48S/T46G/T46S:
X ranges from 1 to 6, Y ranges from 1 to 40.
For SIP-T29G/T27P/T27G:
X ranges from 1 to 6, Y ranges from 1 to 20, 22 to 40 (Ext key 21 cannot be configured).
Web User Interface:
Dsskey->Line Key/Programable Key->Label
Phone User Interface:
Menu->Features->DSS Keys->Line Key X->Label
linekey.X.shortlabel
(X ranges from 1 to 21)
Description:
(Optional.) Configures the short label displayed on the LCD screen for line key.
Note: It is only applicable to SIP-T52S IP phones.
Web User Interface:
Dsskey->Line Key->Short
Phone User Interface:
Menu->Features->DSS Keys->Line Key X->Short Label
To configure an XML Browser key via web user interface:
Click on Dsskey->Line Key (or Programable Key).
1.
In the desired DSS key field, select XML Browser from the pull-down list of Type.
2.
the available access URL in the Value field.
3.
Enter
(Optional.) Enter the string that will appear on the LCD screen in the Label field.
4.
Click Confirm to accept the change.
5.
Configuring Advanced Features
Permitted Values
String within 99
characters
Default
Blank
789