Zultys ZIP4x4, User Manual

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8. Using the Phone
103
8.8.6.3 Dropping Indviduals
To end an individual call that is part of a conference, ensure the conference call is active, then
press the call appearance button of the call that you want to terminate. The phone terminates the
call on that call appearance and turns the LED on that button off.
You can use the Up and Down buttons to identify which person is on which call appearance as
described in section 8.4.3 on page 86.
8.8.6.4 Ceasing to be Part of the Conference
If you no longer want to take part in the conference but want the other participants to continue
to talk to one another, place the conference on hold as described in section 8.8.2 on page 100.
Your phone continues to mix the audio signals for the conference call and it continues to use the
call appearances on your phone. As the participants in the call leave the conference, the call
appearances used by the individuals will once again become free and the phone will turn off the
LEDs on those call appearance buttons.
8.9 Calculator
8.9.1 Functions
The calculator can perform simple additions, subtractions, multiplications, and divisions with a
precision (number of significant digits) of 12 digits. You can easily put the phone into calculator
mode and restore it to phone mode. Alternatively, you can keep the ZIP4x4 normally in calculator
mode; the ZIP4x4 will switch between calculator mode and call mode intelligently depending
upon what you are doing.
8.9.2 Keys
To put the ZIP4x4 into calculator mode, press Calc.
1
The phone displays the word Calculator on
the top row and keeps it there until you press a numeric key or exit calculator mode. The phone
turns on the LED on the calculator button continuous green.
Use the keys labelled 0 to 9 for numerals, the * key for the decimal point, and the Redial (+), Conf
(—), Trans (X), and Hold (÷) keys to indicate the arithmetic function. Press the Speaker (=) key
to obtain the result of the calculation.
8.9.3 Display
As you type, the display shows the calculation and the result:
1. See section 6.2.1.2 on page 46 on how to access this.
2.048
x 192
= 393.216