Yealink SIP-T58V & T58A & T56A Smart Media Phones User Guide
2. Do one of the following:
Drag the backlight slider.
l
When dragging the slider, the control center (except the backlight slider) and notification center will be hidden.
You can view the intensity changes of the touch screen in real-time.
42
SIP-T58V/A
SIP-T56A