Overview
5
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 call is parked against the monitored user’s
phone number.
The monitored user’s conversation is placed on
hold (This status requires server support).
The monitored user does not exist.
Line key LED (used as a page switch key)
There is a parked call on the line key of the
non-current page.
The line receives an incoming call on the line key of
the non-current page.
The monitored user receives an incoming call on
the line key of the non-current page.
Note
The above introduces the default LED status. The statuses of the power indicator LED and
BLF key are configurable via web user interface. For more information, refer to
Yealink_SIP-T4X_IP_Phones_Administrator_Guide
.
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