ADJUSTING SPEAKERPHONE VOLUME
Slide MAINS-LIBRES
Remark: During hands-free mode, press ▲ or ▼ key continuously, LCD display VOL
1, VOL 2, VOL 3 and VOL 4, but this is invalid to adjust speaker volume.
Setting date & time
1. In on-hook state, press
the value of year flashes.
2. Press ▲ or ▼ key to edit the year.
3. Press
key to confirm and enter the next value month setting.
4. Repeat the above steps for month setting.
5. Repeat the above steps for date and time setting.
Adjusting LCD Contrast
1. In on-hook state, press
LCD, press
key again, LCD displays LCD 5
2. Press ▲ or ▼ key to adjust the LCD contrast, total 8 levels can be selected.
3. Press
key to confirm and exit.
Shortcut key: At on-hook state, press R key to enter LCD contrast setting directly,
then press R key continuously to adjust the LCD contrast
to switch the speaker volume to low, middle and high.
key, LCD displays SET 1 DATE and press
key and press ▲ key three times, LCD displays SET 4
18
key again,