State Indicator Of Remote Line; Blf/Blf List Subscription - Yealink SIP-T3 Administrator's Manual

[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T53C/T43U/T42U/T42G/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T33P/T33G, X=1-4; for
T40P/T40G/T23P/T23G, X=1-3; for T31P/T31G/T31/T21(P) E2, X=1-2; for CP925/CP935W, X=1.
[2]
If you change this parameter, the phone will reboot to make the change take effect.

State Indicator of Remote Line

The state indicator of the monitored line on BLF/BLF List key varies by phone models.
The following table shows the LED/icons indicator associated with the line you are monitoring.
LED Status
T48U/T48S/T48G T46U/T46S/T46G/T29G T57W/T54W/T53C/T33P/T33G
Solid green
(Flashing)
Fast-flashing
red
(Flashing)
Solid red
Slowly-flash-
ing red
Off
CP925/CP935W Icons
(Flashing)
(Flashing)

BLF/BLF List Subscription

Yealink phones support BLF using a SUBSCRIBE/NOTIFY mechanism as specified in
BLF Subscription
Icons
The monitored line is idle.
The monitored line is ringing.
The monitored line is dialing.
The monitored line is busy or in a call.
The monitored line places a call on hold.
A call is parked to the monitored line.
The monitored line fails to register or does not exist.
(Flashing on T57W)
(Flashing on T57W)
Description
RFC
Advanced Features
Description
The monitored line is
idle.
The monitored line is
ringing.
The monitored line is
dialing.
The monitored line is
busy or in a call.
The monitored line
places a call on hold.
A call is parked to the
monitored line.
The monitored line fails
to register or does not
exist.
3265.
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