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BT Converse 420 Manual

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If your Converse 420 is
connected to a switchboard,
you must first switch off the
calculator before transferring
a call.
To use the
MRC function
Your calculator provides a
Memory Recall (MRC)
function. This enables you
to put calculations in the
memory while you make
other calculations, and then
add them together or
subtract one from the other.
For example
Press the Calculator button.
The display changes to the
calculator function.
Enter the number you
want 50.
Turn the Navigator Wheel
to display the function M+.
Press the ✓ button.
Enter the second number
20.
Navigator Wheel still
displays the function M+.
Press the ✓ button.
Turn the Navigator Wheel
to MRC.
Press the ✓ button.
Display shows the total on
memory 70.
To set the call timer
You can time each call.
During a call press the
Clock button. This displays
the time of the previous
call.
Press the Clock button
again to start the timer.
You can stop the time by
pressing the Clock button
once more.
When you replace the
handset or press the
Handsfree button to end
the call, the display shows
the final duration of the
call for a few seconds
before returning to the
normal clock setting.
Using the calculator
Your Converse 420 provides
all the basic calculator
functions - addition,
subtraction, multiplication,
division and percentages
as well as Memory Recall.
+, --, --
.
., X, =, %, AC, M-, M+
and MRC.
If the phone rings while
you are using the
calculator function, simply
lift the receiver or press
the Handsfree button as
normal. Note that
information entered in
calculator mode will be lost.
To use the calculator
Press the Calculator button.
The display changes to the
calculator function.
Enter the number you
want 123.
Turn the Navigator Wheel
to display the function +.
Press the ✓ button.
Enter the second number
74.
Turn the Navigator Wheel
to display the function =.
Press the ✓ button.
Display shows the result
197.
To clear a calculation
Turn the Navigator Wheel
to display AC.
Press the ✓ button.
To switch off the
calculator
Press the Calculator button.
The calculator will also
switch off automatically
if no button is pressed for
1 minute.
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