avantec DT910, User Manual, Page: 13 / 24

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7.1.6 Range
If the RF signal strength is weak during a call (the handset is far away
from the base station), the handset will play a WARNING Tone in the
earpiece to indicate that the RF range condition is bad.
1.
In standby mode, press key to enter the handset menu.
2. Press key until “ HS SETUP ” is displayed.
3. Press key, “ HANDSET TONE ” is displayed.
4. Press key, then press key until
“ RANGE ” is displayed.
5. Press key, the current setting is
displayed (ON or OFF).
6. Use / key to switch between ON and
OFF.
7. Press key to confirm and save the change.
8. Press key to go back to standby screen.
7.2 Contrast
1. In standby mode, press key to enter the handset menu.
2. Press key until “ HS SETUP ” is displayed.
3. Press key, then press key until
“ CONTRAST ” is displayed.
4. Press key, the current contrast level
is displayed.
5. Use / key to select the desired contrast
level (6 steps).
6. Press key to save the change.
7. Press key to go back to standby screen.