About Using The Terminal - Sony XPERIA XZ2 Instruction Manual

Contents/Precautions

About using the terminal

The terminal supports LTE, W-CDMA, GSM/
･
GPRS and Wireless LAN Systems.
Because a terminal operates using radio
･
frequencies, it cannot be used inside a tunnel,
underground, in a building or other locations
where radio waves do not reach, in locations
with weak radio wave condition, or out of LTE/
FOMA service area. The services may not be
available on the upper floors of high-rise
apartments or buildings, even if there are no
obstructions around you. On occasion, your
calls may be disconnected even in areas with
strong radio wave condition, even if you are
not moving, or even if there are 4-signal icon
on the terminal's display.
Because the terminal uses radio waves to
･
communicate, it is possible that a third party
may attempt to tap your calls. However, the
LTE, W-CDMA, GSM/GPRS system
automatically scrambles all calls through a
private call feature. Therefore, even if the third
party successfully intercepts your call, they
will only hear noise.
The terminal operates on radio frequencies by
･
converting voice into digital signals. If the caller
moves into an area of adverse radio wave
condition, the digital signal may not be restored
accurately, and the voice received in the call may
differ slightly from the actual voice.
The terminal supports function that can be
･
used by users and guests. Therefore some
services or applications recognize them as the
same user even after the user is switched.
DOCOMO shall have no liabilities for any
damage or troubles of customer or a third
party resulting from using the function
(P.190).
Note down the information saved in the
･
terminal in a separate note on a regular basis
or save to an external recording medium such
as a microSD card or PC. Note that DOCOMO
assumes no responsibility for any loss of saved
contents of data resulting from malfunction,
repair, changing of the model or other
handling of the terminal.
As with PCs, some user-installed applications
･
or accessed websites may disrupt the stability
of the terminal performance, or unexpectedly
transmit information via the Internet causing
improper use of your location information as
well as personal information recorded on the
terminal. Therefore, verify the supplier and
operating conditions of the applications or
websites before using them.
This terminal has FOMA Plus-Area and FOMA
･
HIGH-SPEED Area support.
Contents/Precautions
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