The mic. should be close to mouth.
Check if the built-in mic. is not covered.
When a headset is un use, check if it has
been connected correctly.
Check if the built in speaker isn’t covered.
Check if the typed-in phone number is
correct.
Check if the phone number entered to the
[Phonebook] is correct.
Enter the correct phone number if necessary.
Proper use of the battery
Battery in this device can be charged with a charger. If the level
of energy in the battery is low, recharge it. To prolong battery life,
let it discharge beneath 20% of the battery capacity before
connecting the phone charger and charge it up to 100%. If not
used, unplug the charger from the phone.
Excessive charging causes shortened battery life. The battery
temperature affects the quality of charging. Before the charging
process starts, lower or raise the temperature to be close to room
temperature (approx. 20°C). If the battery temperature exceeds
40°C the battery must not be charged! If the battery overheats,
the device will display an appropriate message. The battery
lifespan can be shortened, if it has been exposed to very low or
very high temperatures - this causes interference to the phone,
even when the battery has been properly charged. Use the
battery only according to its intended purpose. Avoid leaving the
battery within a magnetic field range, because it shortens its life.
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