Always use supplied power adaptor for source of power to ensure all features are enabled. For best feature controls and firmware updates use Yealink USB Connect https://www,yealink.com/product/yuc. .
Note: Power will only disconnect connection between base and the
headset but not delete the pairing information.
Call indicator light – PC/ Desk Phone Button
Off (no light) – PC/desk phone device not connected
Glows White – PC/desk phone device connected in idle status
Glows Green – PC headset in use/desk phone device active call
Flashes Green – Desk phone device enabled and ringing
Double Flashes Green – Desk phone device call on hold
Charging Status
Off (no light) – Power off/idle (earpiece not on the base)
Slowly Flashes Red – Battery < 5% (low earpiece battery)
Flashing Red & Green Alternatively – Firmware update
Slowly Flashes Orange – Earpiece out of range
Tower Headset Status
Mute White – unmuted
Mute Red – call muted
Headset Off (no light) – Idle
Headset Green – In active call
Headset Flashing Orange – Headset powered off/out of range
Charging Bars Solid White – 5 bars fully charged
Charging Bars Flashing – Charging and % charged
Earpiece Busylight
Off (no light) – Earpiece not in base
Green – Idle in base
Glows Red – In active call/mute
Double Flashes Red – Active call on hold