AASTRA 9480i 사용자 가이드

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Model 9480i CT IP Phone User Guide
 
Line Keys and Softkeys
Busy Lamp Field (BLF) Key
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 9480i CT, the busy and idle indicators show on the IP phone screen display next to the 
key programmed for BLF functionality. When the monitored user is idle, an icon with the 
handset on-hook shows next to the BLF key. When the monitored user is on an active call, a 
small telephone icon is shown with the handset off-hook.
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