Following Safety Guidelines; Using Your Phone Near Other Electronic Devices - Samsung SCH-a770 series User Manual

10.Call roadside assistance or a special non-emergency
wireless assistance number when necessary. If you see a
broken-down vehicle posing no serious hazard, a broken
traffic signal, a minor traffic accident where no on appears
injured, or a vehicle you know to be stolen, call roadside
assistance or other special non-emergency number.

Following safety guidelines

Note: Always turn off the phone in health care facilities and request
permission before using the phone near medical equipment.
To operate your phone safely and efficiently, always follow any
special regulations in a given area. Turn your phone off in
areas where use is forbidden or when it may cause
interference or danger.

Using your phone near other electronic devices

Most modern electronic equipment is shielded from radio
frequency (RF) signals. However, RF signals from wireless
phones may affect inadequately shielded electronic
equipment.
RF signals may affect improperly installed or inadequately
shielded electronic operating systems and/or entertainment
systems in motor vehicles. Check with the manufacturer or
their representative to determine if these systems are
adequately shielded from external RF signals. Also check with
the manufacturer regarding any equipment that has been
added to your vehicle.
Consult the manufacturer of any personal medical devices,
such as pacemakers and hearing aids, to determine if they
are adequately shielded from external RF signals.
Usage guidelines: All about performance and safety
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