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Model 57i CT IP Phone User Guide 69
Line Keys and Softkeys
Busy Lamp Field (BLF) Key
You can set a softkey to Busy Lamp Field (BLF).
The BLF feature on the IP phones allows a specific extension to be monitored for
state changes. BLF monitors the status (busy or idle) of extensions on the IP phone.
Example
A Supervisor configures BLFs on his phone for monitoring the status of a worker’s
phone use (busy or idle). When the worker picks up his phone to make a call, a busy
indicator on the Supervisor’s phone shows that the worker’s phone is in use and busy.
On the 57i CT, the busy and idle indicators show on the IP phone screen display next
to the softkey programmed for BLF functionality. When the monitored user is idle,
an icon with the handset on-hook shows next to the BLF softkey. When the
monitored user is on an active call, a small telephone icon is shown with the handset
off-hook.
Setting a BLF Key
1. Click on Operation->Softkeys and XML.
or
Note: The BLF setting is applicable to the Asterisk server only.
Note: You can also use a BLF configured key to dial out. Contact your System
Administrator for more information
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