Yealink SIP-T20 - Manual (Page 16)

User Guide for the SIP-T20P/SIP-T20 IP Phone
4
Power Indicator LED
LED Status Description
Solid green
The phone is initializing.
The phone is busy.
The phone is idle.
The call is placed on hold or is held.
The phone receives a voice mail.
Fast flashing green (300ms)
The phone is ringing.
The call is mute.
Off The phone is powered off.
Line key LED
LED Status Description
Solid green
The line is in conversation.
The line is seized.
Fast flashing green The line receives an incoming call.
Slow flashing green The call is placed on hold.
Off The line is inactive.
Line key LED (configured as a BLF key)
LED Status Description
Solid green The monitored user is idle.
Fast flashing green (200ms) The monitored user receives an incoming call.
Slow flashing green (500ms)
The monitored user is dialing.
The monitored user is talking.
The monitored user’s conversation is placed on
hold.
Slow flashing green (1s)
The call is parked against the monitored user’s
phone number.
Off The monitored user does not exist.
Note The above introduces the default LED status. The statuses of the power indicator LED an d
BLF key are configurable via web user interface. For more information, refer to
Yealink_SIP-T2xP_and_SIP-T19P_IP_Phone_Family_Administrator_Guide.