Operation Manual

Enterprise IP Phone Overview
LED Instruction
Table 1 DSS Key set to BLF
LED Status
Description
Steady green
The monitored account is in idle status
Blinking red
There is an incoming call to the monitored account
Steady red
The monitored account is on a conversation
Off
It is not active as BLF
Table 2 DSS Keys set to BLA (Bridged Line Appearances)
LED Status
Description
Steady green
All of the members are in idle status
Steady red
Some part(s)is seizing the line
Blinking green 300ms
Some part(s) is ring-back
Blinking red 300ms
Some part(s) is ringing
Steady orange 
Some part(s) is on the phone
Blinking Orange
500ms
Some part(s) is under the public hold status, and all of the
members can retrieve the call
Blinking green 500ms
Some part(s) is under the private hold status, and only the
initiator can retrieve the call
Blinking red 500ms
Three way conference, all of the parts press hold
Off 
It is not active as BLA
Table 3 Line Keys set to BLF
LED Status
Description
Steady green
The monitored account is in idle status
Fast blinking green
There is an incoming call to the monitored account
Slow blinking green
The monitored account is on an conversation
Off
It is not active as BLF
Table 4 Line Keys set to BLA
LED Status
Description
Steady green
All of the members are in idle status
Slow blinking green
Some part(s)is seizing the line/ ring-back/ under the private
hold status.
Fast blinking green
Some part(s) is ringing/on the phone / under the public hold
status or all of the parts press hold.
Off
It is not active as BLA