Yealink SIP-T54S Administrator's Manual page 665

Parameters
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_barge_in_code = *33
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones.
Web User Interface:
Account->Advanced->BLF List Barge In Code
Phone User Interface:
None
account.X.blf_list_retrieve_call_parked_code
Description:
Configures the feature access code for the call park retrieve 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_retrieve_call_parked_code = *88
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones.
Web User Interface:
Account->Advanced->BLF List Retrieve Call Parked Code
Phone User Interface:
None
BLF List Key
For more information on how to configure the DSS Key, refer to
Key on page 1014. To manually configure BLF list key, make sure the value of the parameter
"phone_setting.auto_blf_list_enable" is set to 0 (Disabled).
Configuring Advanced Features
Permitted Values
String within 32
characters
Appendix D: Configuring DSS
Default
Blank
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