Yealink SIP-T54S Administrator's Manual page 961

Configuring Security Features
Parameters Permitted Values Default
When X=4, the default value is 30 (Menu).
When X=5, the default value is 28 (History).
When X=6, the default value is 61 (Directory).
When X=7, the default value is 0 (NA).
When X=8, the default value is 0 (NA).
When X=9, the default value is 33 (Status).
When X=13, the default value is 0 (NA).
When X=14, the default value is 2 (Forward).
For CP860/CP920 IP phones:
When X=1, the default value is 28 (History).
When X=2, the default value is 61 (Directory).
When X=3, the default value is 5 (DND).
When X=4, the default value is 30 (Menu).
When X=5, the default value is 28 (History).
When X=6, the default value is 85 (Local Favorite).
When X=9, the default value is 33 (Status).
When X=13, the default value is 0 (NA).
Web User Interface:
Dsskey->Line Key/ Programable Key->Type
Phone User Interface:
Menu->Features->DSS Keys->Line Keys X->Type
Note: Line keys and ext keys are not applicable to CP860/CP920 IP phones.
linekey.X.label/
String within 99
programablekey.X.label/
Blank
characters
expansion_module.X.key.Y.label
Description:
(Optional.) Configures the label displayed on the LCD screen for each DSS key.
For line keys:
X ranges from 1 to 29 (for SIP-T48G/S)
X ranges from 1 to 27 (for SIP-T54S/T46G/T46S/T29G)
X ranges from 1 to 15 (for SIP-T42G/T42S/T41P/T41S)
X ranges from 1 to 21 (for SIP-T52S/T27P/T27G)
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
For programable keys:
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