VoIP Handset User Guide – Yealink T27 Series
5
LED Information
Power Indicator LED:
LED Status
Description
Solid Red
The phone is initialising
Fast flashing red (300ms) The phone is ringing
Slowly flashing red (1s)
The phone received a voice
Off
The phone is off
The phone is idle
Line Key LED (configured as a Line Key):
LED Status
Description
Solid green
The phone is initialising
Fast flashing green
The phone is ringing
Slowly flashing green
The phone received a voice
Off
The phone is off
The phone is idle
Line Key LED (configured as BLF for line monitoring and call transfers):
LED Status
Description
Solid green
The monitored line is idle
Fast flashing red (200ms) The monitored line is ringing
Solid red
The monitored line is busy
Off
The monitored line doesn’t exist on this system