User Guide for the SIP-T54S Media IP Phone
10
LED Instructions
Power Indicator LED
The phone is initializing.
Fast-flashing red (300ms)
The phone receives a voice mail or text message.
The phone is powered off.
The phone is idle.
The phone is busy.
The call is placed on hold or is held.
The call is muted.
Line key LED
The line is seized.
The line is in conversation.
The line receives an incoming call.
The call is placed on hold.
Line key LED (configured as a BLF key or BLF List key)
The monitored user is idle.
Fast-flashing red (200ms)
The monitored user receives an incoming call.
The monitored user is busy.
The monitored user’s conversation is placed on hold
(This LED status requires server support).
The call is parked against the monitored user’s phone
number.
The monitored user does not exist.