AT820 Series User Manual
34
ATCOM TECHNOLOGY CO., LIMITED
www.atcom.cn
5.5 Phone Setting
5.5.1 Preference
5.5.1.1 Language
Select the language shown on the LCD.
5.5.1.2 Output Volume
（
1~8
）
A.
Handset Volume: Specify handset volume grade, range from 1 to 8.
B.
SpeakerPhone Volume: Specify speakerphone volume grade, range from 1 to 8.
C.
Headset Volume: Specify headset volume grade, range from 1 to 8.
5.5.1.3 Input Gain
A.
Handset Gain
：
Specify handset gain, the bigger the gain, the louder will the other end
hear when the user is using the handset.
B.
SpeakerPhone Mic Gain: Specify speakerphone mic gain, the bigger the gain, the
louder will the other end hear when user is using the speakerphone.
C.
Headset Gain: Specify the headset gain, the bigger the gain, the louder will the other
end hear when user is using the headset.
5.5.1.4 LCD
A.
Backlight Level: Specify the level of the blacklight: Off, Low, High.
B.
Backlight Time(Seconds): Specify the duration that the blacklight will be on for.
C.
LCD Contrast: Specify the LCD contrast,range from 1 to 8.
