AASTRA 53i ip phone 매뉴얼

50 Model 53i IP Phone User Guide

BLF List Key

(For use with the BroadSoft Broadworks Rel 13 or higher platform only)
The BLF\List feature on the IP phones is specifically designed to support the 
BroadSoft Broadworks Rel 13 Busy Lamp Field feature.
This feature allows the IP phone to subscribe to a list of monitored users defined 
through the BroadWorks web portal. 

In addition to monitoring the idle and busy state, the BLF\List feature also supports 
the ringing state. On the 53i phone, the LED lights next to each BLF programmable 
key illuminate steady to indicate the monitored line is off-hook or unregistered. The 
LED goes off when the is idle.  When the monitored extension is ringing, the LED 
flashes.

Example
A receptionist has a 53i running Broadsoft firmware that subscribes to a list of 
extensions from the BroadWorks Application Server. On the 53i running Broadsoft 
firmware, the programmable key LEDs illuminate either flashing, solid, or turn off 
depending on the state of those extensions.

Note: Your System Administrator must have BLF List enabled on the Broad-

Works Server. Contact your System Administrator for more information.

Note: You can use a BLF\List configured key to dial out.

Note: The Broadworks BLF feature is not the same as the Broadworks Shared 

Call Appearance (SCA) feature and does not permit call control over the 
monitored extension.