Yealink SIP-T54S Administrator's Manual page 253

Parameters
Description:
Configures the display name to be displayed on the called party's 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->Display Name
Phone User Interface:
Menu->Advanced (default password: admin) ->Accounts->Display Name
account.X.auth_name
Description:
Configures the user name for register authentication 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)
Note: The user name for register authentication is provided by ITSP. It is always matched
with a password (configured by the parameter "account.X.password") used for register
authentication, if required by the server.
Web User Interface:
Account->Register->Register Name
Phone User Interface:
Menu->Advanced (default password: admin) ->Accounts->Register Name
account.X.user_name
Description:
Configures the register user name for account X.
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
Configuring Basic Features
Permitted Values Default
String within 99
characters
String within 99
characters
Blank
Blank
227