Busy Lamp Field (Blf) - Polycom VVX OBi Series User Manual

Icon SCA State
Call Parked
Idle
Error

Busy Lamp Field (BLF)

The Busy Lamp Field (BLF) is a feature that lets you monitor calls.
When the BLF service is available, you can assign the BLF function to a feature key. The phone treats a
BLF feature key-press as a speed dial to call the monitored extension.
The following table lists typical BLF events, the operations that happen when the event occurs, and the
LED pattern for that event. Two or more events can happen at the same time, but the LED pattern shows
only one event at a time.
List of All BLF States
BLF
Icon Event Description
Ringing Monitored extension is
ringing.
Busy Monitored extension is
on a call or making a
call.
Holding Monitored extension is
holding one or more
calls.
Call A call is parked
Parked against the monitored
extension.
Idle Monitored extension is
idle.
Polycom, Inc.
Description
A call is parked against the
extension.
None of the sharing phones
is using the SCA.
Protocol error
Available Operation
Answer the call.
Barge in to do one of the following:
• Fully participate in the call or conference.
• Listen to the conversation without talking.
• Listen to the conversation but talk only to
the monitored extension (a.k.a. coaching
or whispering).
There can be other variations along these
lines.
Resume and take over the call.
Pick up the call from the parking slot.
Make or transfer a call to the extension.
Available Operations
Pick up the parked call.
Seize the SCA to make an
outgoing call.
Shared Lines
LED Pattern
Medium blinking
in red
Off
Steady amber
LED Pattern
Fast blinking
red
Steady red
Slow blinking
red
Periodic short
blink in red
Steady green
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