Grandstream Networks GXP1628

GXP1620/1625/1628 BLF Configuration Guide
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Table 2: The BLF Indicators Status in Different Scenarios
Monitored Extension
Behavior
BLF Indicator Status
(LINE Keys/MPKs on
Phone Body)
Extension Board Key
Status
(On Mounted
Extension Board)
Idle
Solid green
Solid green
Placing a call
Solid red
Solid red
Ringing
Blinking red
Blinking red
During a call
Solid red
Solid red
Hold the call
Solid red
Solid red
Monitored extension
not registered/BLF
subscription failed
Off
Off