Yealink SIP-T54S Administrator's Manual page 252

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Details of Configuration Parameters:
account.X.enable
Description:
Enables or disables the account X.
0-Disabled
1-Enabled
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)
X ranges from 1 to 6 (for SIP-T41P/T41S/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)
X is equal to 1 (for SIP-T19(P) E2/CP860/CP920)
Web User Interface:
Account->Register->Line Active
Phone User Interface:
Menu->Advanced (default password: admin) ->Accounts->Activation
account.X.label
Description:
(Optional.) Configures the label to be displayed on the LCD screen for account X.
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)
X ranges from 1 to 6 (for SIP-T41P/T41S/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)
X is equal to 1 (for SIP-T19(P) E2/CP860/CP920)
Web User Interface:
Account->Register->Label
Phone User Interface:
Menu->Advanced (default password: admin) ->Accounts->Label
account.X.display_name
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Parameters Permitted Values Default
0 or 1
String within 99
characters
String within 99
characters
0
Blank
Blank