Medion LIFE S63064, Инструкция по эксплуатации

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Key lock
To prevent accidental dialling when you are carrying the handset with you,
you can activate the keypad lock. This is not possible during a call.

Hold down the asterisk key until the symbol for the
key lock appears on the display.
NB:
This will not affect your ability to receive calls.

To deactivate the keypad lock, hold down the asterisk key
until the symbol for the key lock disappears.

Switching off the ring tone
 To switch off the ring tone, press and hold the
hash key.
The symbol is displayed.

To switch the ring tone back on again, press and hold down the hash key.
The symbol disappears on the display.
Muting the telephone
 To mute the telephone, press the left control key “Mute” during a call.
“
Call Muted
” appears on the display. The caller is now unable to hear you.
To end muting, press the left control key again.