Switching between letters and numbers

Depending on the menu, you can switch between entering letters and numbers:

Switching between upper and lower

    See also:

    Running a function
    Press the button. The function will run immediately. This means, for example, that the number is dialed when a phone number is selected. ...

    General information
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    Requirements
    ▷ The mobile phone is suitable. ▷ The mobile phone operating system supports the software applications of Apps. ▷ Software applications are installed on the cell phone and read ...