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feature helps to protect your phone from unauthorized use.
Keypad Lock can be set to ON or OFF, how long to enable this function during the
phone is idle and you can choose to lock the function keys or all keys. And this
function can only be configured through the web UI, please refer to the web
interface for the details.
Function Keys: The function keys are locked. You cannot use the LIINE KEYS,
MESSAGE KEY, SOFT KEYS, NAVIGATION KEYS, and FUNCTION KEYS until
unlocked.
All Keys: All keys are locked.
3.20.Busy Lamp Field (BLF)
Busy Lamp Field (BLF) is used to monitor a specific user for status changes on IP
phones. For example, you can configure a BLF key on a supervisor’s phone to monitor
the phone user status (busy or idle). When the monitored user places a call, a busy
indicator on the supervisor’s phone indicates that the user’s phone is in use.
BLF LED Mode
BLF LED Mode provides two kinds of definition for the BLF key LED status.
Line key LED
LED Status
Description
Solid green
The monitored user is idle.
Fast flashing green
The monitored user receives an incoming
call.
Slow flashing green
The monitored user is dialing.
The monitored user is talking.
Off
The monitored user does not exist.
To configure a BLF key via phone user interface:
PATH: Press Menu-->Features-->Programmable keys-->Line Keys -->BLF--> Save
softkey.