Samsung SGH-ZX20ZKACIN - Manual (Page 166)

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Vehicles
RF signals may affect improperly installed or inadequately shielded electronic
systems in motor vehicles. Check with the manufacturer or its representative
regarding your vehicle. You should also consult the manufacturer of any equipment
that has been added to your vehicle.
Posted Facilities
Switch your phone off in any facility where posted notices require you to do so.
Potentially Explosive Environments
Switch your phone off when in any area with a potentially explosive atmosphere and
obey all signs and instructions. Sparks in such areas could cause an explosion or fire
resulting in bodily injury or even death.
Users are advised to switch the phone off while at a refueling point (service station).
Users are reminded of the need to observe restrictions on the use of radio equipment
in fuel depots
(fuel storage and distribution areas), chemical plants or where blasting operations
are in progress.
Areas with a potentially explosive atmosphere are often but not always clearly
marked. They include below deck on boats, chemical transfer or storage facilities,
vehicles using liquefied petroleum gas (such as propane or butane), areas where the
air contains chemicals or particles, such as grain, dust or metal powders, and any
other area where you would normally be advised to turn off your vehicle engine.
Emergency Calls
This phone, like any wireless phone, operates using radio signals, wireless and
landline networks as well as user-programmed functions, which cannot guarantee
connection in all conditions. Therefore, you should never rely solely on any wireless
phone for essential communications (medical emergencies, for example).
Remember, to make or receive any calls the phone must be switched on and in a
service area with adequate signal strength. Emergency calls may not be possible on
all wireless phone networks or when certain network services and/or phone features
are in use. Check with local service providers.
To make an emergency call:
1. If the phone is not on, switch it on.
2. Key in the emergency number for your present location (for example, 911 or
other official emergency number). Emergency numbers vary by location.