BT 420 manual Enter the number you want 12, Press the button Enter the second number, For example

Models: 420

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To set the call timer

To use the calculator

If your Converse 420 is connected to a switchboard, you must first switch off the calculator before transferring

You can time each call.

1During a call press the Clock button. This displays the time of the previous call.

2Press the Clock button again to start the timer. You can stop the time by pressing the Clock button once more.

3When 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.

1Press the Calculator button. The display changes to the calculator function.

2Enter the number you want 12 3.

Turn the Navigator Wheel to display the function +.

Press the button .

3Enter 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.

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

1Press the Calculator button.

The display changes to the calculator function.

2Enter the number you want 50.

Turn the Navigator Wheel to display the function M+.

Press the button.

3Enter 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.

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BT 420 Enter the number you want 12, Press the button Enter the second number, Press the button Display shows the result