Yealink SIP-T54S Administrator's Manual page 644

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Procedure
BLF LED status and BLF key behavior can be configured using the configuration files.
Central
Provisioning
(Configuration
File)
618
Configure BLF LED status and BLF key
behavior when the monitored user is idle.
Parameters:
blf.enhanced.idle.enable
blf.enhanced.idle.led
blf.enhanced.idle.callin.action
blf.enhanced.idle.talking.action
blf.enhanced.idle.idle.action
Configure BLF LED status and BLF key
behavior when the monitored user is
ringing.
Parameters:
blf.enhanced.callin.enable
blf.enhanced.callin.led
blf.enhanced.callin.callin.action
blf.enhanced.callin.talking.action
blf.enhanced.callin.idle.action
<y0000000000xx>.c
Configure BLF LED status and BLF key
fg
behavior when the monitored user is calling
out.
Parameters:
blf.enhanced.callout.enable
blf.enhanced.callout.led
blf.enhanced.callout.callin.action
blf.enhanced.callout.talking.action
blf.enhanced.callout.idle.action
Configure BLF LED status and BLF key
behavior when the monitored user is
talking.
Parameters:
blf.enhanced.talking.enable
blf.enhanced.talking.led
blf.enhanced.talking.callin.action
blf.enhanced.talking.talking.action
blf.enhanced.talking.idle.action