Yealink SIP-T54S Administrator's Manual page 664

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Description:
Configures the BLF List URI to monitor a list of users 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)
Example:
account.1.blf.blf_list_uri = 4609@pbx.test.com
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones.
Web User Interface:
Account->Advanced->BLF List URI
Phone User Interface:
None
account.X.blf_list_code
Description:
Configures the feature access code for directed call pickup 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)
Example:
account.1.blf_list_code = *97
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones.
Web User Interface:
Account->Advanced->BLF List Pickup Code
Phone User Interface:
None
account.X.blf_list_barge_in_code
Description:
Configures the feature access code for directed call pickup with barge-in for account X.
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Parameters Permitted Values
String within 32
characters
String within 32
characters
Default
Blank
Blank