Power Light Indicators on Yealink Desk Phones

Understand the LED light patterns and their meanings on supported Yealink desk phones.

Written By Sara Mosher (Super Administrator)

Updated at March 2nd, 2026

Yealink desk phones use LED light indicators to display call status, voicemail notifications, and device activity.

Supported models

The light patterns below apply to Yealink T33, T43U, and T46U desk phones.

 
LED color and pattern Meaning
Solid red The phone is starting up.
Fast flashing red (0.3s) An incoming call is ringing.
Slow flashing red (1s) You have a voicemail message or missed call.
T33 only: Solid red for 0.5s, off for 3s The phone is in power-saving mode.