Calculator; Sleep Mode; Select Mode; Calculator (Ref - comfortel DECT 650C Bedienungsanleitung

Calculator

Using this feature, you can use the phone as a calculator. You can perform calculations including
addition, subtraction, multiplication and division on your phone.
To use the calculator:
N
N
To erase any mistakes and clear the display, press the CLEAR soft key.
To change the sign of a number from positive (+) to negative (-) and vice versa, use the # key before
entering the number. The * key is used to insert a decimal point.

4.Sleep Mode

Select Mode

ON
5.Extra
5.Calculator
2
2*
2*3
2*3
= 6
Press repeatedly the navigation keys to select
SELECT
4.Sleep Mode, then press the SELECT soft
key. The current setting appears inside the box.
Using the navigation keys, select ON to enable
SELECT
the sleep mode or OFF to disable it.
Press the SELECT soft key to save the setting.
Press the end/on/off key to return to Standby
mode.
MENU
Press the MENU soft key to display the main
menu items.
Press repeatedly the navigation keys to
SELECT
choose 5.Extra, then press the SELECT soft
key.
Press repeatedly the navigation keys to
SELECT
choose 5.Calculator e press the SELECT soft
key.
Enter the first number (operand) using the
numeric keys.
To select the operation for your calculation,
press the navigation keys to choose the
required arithmetic symbol appears; +(addition),
-(subtraction), *(multiplication), /(division).
Enter the second number (second operand)
SELECT
using the numeric keys.
To get the result, press the SELECT soft key.
Press the end/on/off key to return to Standby
mode.
143
Extra