Doro 820 - Handset Volume Control (830 R only)

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Settings
Handset Volume Control (830R only)
1.
Press
w
.
2.
Scroll using
< <
/
> >
until
 ashes in the display. Press
0
0
.
0
3.
Scroll using
< <
/
> >
to the desired setting (+=low, ++=medium, +++=high,
and ++++=maximum). Press
0
to con rm.
0
to con rm.
0
4.
Press
w
to exit the Menu system.