Samsung Byline SCH-R310 - Manual (Page 106)

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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.
3. Press the key.