Potentially explosive environmentsSwitch off your device when in any area with a potentially explosiveatmosphere, and obey all signs and instructions. Potentially explosiveatmospheres include areas where you would normally be advised to turn offyour vehicle engine. Sparks in such areas could cause an explosion or fireresulting in bodily injury or even death. Switch off the device at refueling pointssuch as near gas pumps at service stations. Observe restrictions on the use ofradio equipment in fuel depots, storage, and distribution areas; chemicalplants; or where blasting operations are in progress. Areas with a potentiallyexplosive atmosphere are often, but not always, clearly marked. They includebelow deck on boats, chemical transfer or storage facilities, vehicles usingliquefied petroleum gas (such as propane or butane), and areas where the aircontains chemicals or particles such as grain, dust, or metal powders.Emergency callsImportant: Wireless phones, including this device, operate using radiosignals, wireless networks, landline networks, and user-programmedfunctions. Because of this, connections in all conditions cannot beguaranteed. You should never rely solely on any wireless device foressential communications like medical emergencies.To make an emergency call:1. If the device is not on, switch it on. Check for adequate signal strength.Some networks may require that a valid SIM card is properly inserted in thedevice.2. Press the end key as many times as needed to clear the display and readythe device for calls.3. Enter the official emergency number for your present location. Emergencynumbers vary by location.4. Press the call key.A d d i t i o n a l s a f e t y i n f o r m a t i o n98