Yealink SIP-T54S Administrator's Manual page 653

Configuring Advanced Features
Parameters Permitted Values Default
blf.enhanced.talking.talking.action = newcall
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones. It works only if the
value of the parameter "blf.enhanced.talking.enable" is set to 1 (Enabled).
Web User Interface:
None
Phone User Interface:
None
blf.enhanced.parked.enable 0 or 1 0
Description:
Enables or disables the IP phone to display the custom BLF/BLF List key LED status and
perform the custom behavior for pressing the BLF/BLF List key when a call is being parked
against the monitored phone.
0-Disabled
1-Enabled
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones.
Web User Interface:
None
Phone User Interface:
None
blf.enhanced.parked.led String Blank
Description:
Configures the custom BLF/BLF List key LED status when a call is being parked against the
monitored phone.
This value uses the same macro action string syntax as an Enhanced DSS key.
Example:
blf.enhanced.parked.led = $LEDg1000o$
It means an infinite loop for BLF/BLF list key LED status: illuminates solid green for 1000ms
and then goes out when a call is being parked against the monitored phone.
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones. It works only if the
value of the parameter "blf.enhanced.parked.enable" is set to 1 (Enabled).
Web User Interface:
None
Phone User Interface:
627