142 Guidelines for safe and efficient use P990i
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Always give 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 under all conditions. Therefore you should
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 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 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.
For phones sold in the U.S., before a phone model is available
for sale to the public, it must be tested and certified to the FCC
that it does not exceed the limit established by the government-
adopted requirement for safe exposure. The tests are performed
in positions and locations (that is, at the ear and worn on the
body) as required by the FCC for each model. For body worn
operation, this phone has been tested and meets FCC RF
exposure guidelines when the handset is positioned a minimum
of 15 mm from the body without any metal parts in the vicinity
