Yealink SIP-T54S Administrator's Manual page 254

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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 register user name is provided by ITSP. It is used to identify the account.
Web User Interface:
Account->Register->User Name
Phone User Interface:
Menu->Advanced (default password: admin) ->Accounts->User Name
account.X.password
Description:
Configures the password 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 password for register authentication is provided by ITSP.
Web User Interface:
Account->Register->Password
Phone User Interface:
Menu->Advanced (default password: admin) ->Accounts->Password
account.X.sip_server.Y.address
(X ranges from 1 to 16, Y ranges from 1 to 2)
Description:
Configures the IP address or domain name of the SIP server Y that accepts registrations 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)
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Parameters Permitted Values Default
String within 99
characters
String within 256
characters
Blank
Blank