Teo 8810 ISDN Phone - Manual (Page 53)

Tone Commander 8810 User Guide 49
CONTRAST [█████ ]
(-) (+)
Receive (handset and headset)
Select RCV- or RCV+ to adjust the receiver volume level.
The new setting will be shown in the display.
Transmit (headset only)
Select VOICE.
Select XMT- or XMT+ to adjust the headset’s transmit volume
level.
The new setting will be shown in the display.
Press the OK key to return to the Voice Mode menu or press
the SETUP key to exit Setup Mode.
Adjusting the Display Contrast
This setting adjusts the contrast of the display to compensate for
viewing position and lighting conditions.
From the User Options menu, select DISPLY.
(
SETUP
→ USER → ► → DISPLY)
Select ( - ) to lighten the display (less contrast), or (+) to
darken the display (more contrast).
The display contrast will change, and a bar graph will show
the new contrast setting.
Press the OK key to return to the User Options menu or press
the SETUP key to exit Setup Mode.