Yealink SIP-T28P - Manual (Page 17)

Overview
5
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.
Memory key LED (configured as a BLF key)
LED Status Description
Solid green The monitored user is idle.
Fast flashing red (200ms) The monitored user receives an incoming call.
Solid red
The monitored user is dialing.
The monitored user is talking.
Slow flashing red (1s)
The call is parked against the monitored user’s
phone number.
The monitored user’s conversation is placed on
hold.
Off The monitored user does not exist.
Note
Two ways to customize configurations of your SIP-T28P IP phone:

The user interface on the IP phone.

The user interface in a web browser on your PC.
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.