Samsung SGH-T479RNATMB - Manual (Page 148)

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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.
If certain features are in use (call barring, for example), you may first need to deactivate those features before you
can make an emergency call. Consult this document and your local cellular service provider.
When making an emergency call, remember to give all the necessary information as accurately as possible.
Remember that your phone may be the only means of communication at the scene of an accident; do not cut off the
call until given permission to do so.