Tunstall iVi User Manual page 19

2) Remove
cover, insert a well-
fitting round coin into
the slot and turn it
anticlockwise.
3) Remove the battery and
replace it with the new
battery
remember to observe
the correct orientation
i.e. positive (+) side
facing you. When the
battery is reconnected
the unit will beep.
4) Replace
cover and test the iVi by
pressing
button.
operator that you are
making a battery test
call.
5) If the device fails to
make a test call then
check the orientation of
the battery and repeat
the test by pressing the help button.
the battery
(CR2450),
the battery
the help
Inform
Page 19 of 28
Locked

Unlocked
the

Coin