Sony Ericsson K790a Cell Phone User Manual


 
This is the Internet version of the user's guide. © Print only for private use.
87Important Information
to suspect that interference is taking place,
immediately turn off your mobile phone.
Contact your cardiologist for more information.
For other medical devices, please consult your
physician and the manufacturer of the device.
Driving
Please verify whether local laws and regulations
restrict the use of mobile phones while driving
or require drivers to use handsfree solutions.
We recommend that you use only Sony Ericsson
handsfree solutions intended for use with your
product.
Please note that because of possible interference
to electronic equipment, some vehicle manufacturers
forbid the use of mobile phones in their vehicles
unless a handsfree kit with an external antenna
has been installed.
Always pay full attention to driving and pull off the
road and park before making or answering a call
if driving conditions so require.
Emergency calls
Mobile phones operate using radio signals, which
cannot guarantee connection in all conditions. You
should therefore never rely solely upon any mobile
phone for essential communications (e.g. medical
emergencies).
Emergency calls may not be possible in all areas,
on all cellular networks, or when certain network
services and/or mobile phone features are in use.
Check with your local service provider.
Antenna
This phone contains a built-in antenna. Use of
antenna devices not marketed by Sony Ericsson
specifically for this model could damage your
mobile phone, reduce performance, and produce
SAR levels above the established limits (see below).
Efficient use
Hold your mobile phone as you would any other
phone. Do not cover the top of the phone when it
is in use, as this affects call quality and may cause
the phone to operate at a higher power level than
needed, thus shortening talk and standby times.
Radio frequency (RF) exposure and
SAR
Your mobile phone is a low-power radio transmitter
and receiver. When it is turned on, it emits low levels
of radio frequency energy (also known as radio
waves or radio frequency fields).
Governments around the world have adopted
comprehensive international safety guidelines,
developed by scientific organizations, e.g. ICNIRP
(International Commission on Non-Ionizing Radiation
Protection) and IEEE (The Institute of Electrical and
Electronics Engineers Inc.), through periodic and
thorough evaluation of scientific studies. These
guidelines establish permitted levels of radio wave
exposure for the general population. The levels
include a safety margin designed to assure the
safety of all persons, regardless of age and health,
and to account for any variations in measurements.
Specific Absorption Rate (SAR) is the unit of
measurement for the amount of radio frequency
energy absorbed by the body when using a mobile
phone. The SAR value is determined at the highest
certified power level in laboratory conditions, but
the actual SAR level of the mobile phone while it
is operating can be well below this value. This is
because the mobile phone is designed to use the
minimum power required to reach the network.
Variations in SAR below the radio frequency exposure
guidelines do not mean that there are variations
in safety. While there may be differences in SAR
levels among mobile phones, all Sony Ericsson
mobile phone models are designed to meet radio
frequency exposure guidelines.