Nokia 3500 classic User Guide - Page 49

Hearing aids Potentially explosive environments Some digital wireless devices may interfere with some hearing aids. If interference occurs, consult your service provider. Switch off your device when in any area with a potentially explosive atmosphere, and obey all signs and instructions. Potentially explosive atmospheres include areas where Vehicles you would normally be advised to turn off your vehicle engine. Sparks in such areas could cause an explosion or RF signals may affect improperly installed or inadequately shielded electronic systems in motor vehicles such as electronic fuel injection systems, electronic antiskid (antilock) braking systems, electronic speed control systems, and air bag systems. For more information, check with the manufacturer, or its representative, of your vehicle or any equipment that has been added. fire resulting in bodily injury or even death. Switch off the device at refuelling points such as near gas pumps at service stations. Observe restrictions on the use of radio equipment in fuel depots, 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 Only qualified personnel should service the device or and areas where the air contains chemicals or particles install the device in a vehicle. Faulty installation or service such as grain, dust, or metal powders. You should check may be dangerous and may invalidate any warranty that with the manufacturers of vehicles using liquefied may apply to the device. Check regularly that all wireless petroleum gas (such as propane or butane) to determine device equipment in your vehicle is mounted and if this device can be safely used in their vicinity. operating properly. Do not store or carry flammable liquids, gases, or explosive materials in the same compartment as the device, its parts, or enhancements. Emergency calls For vehicles equipped with an air bag, remember that air bags inflate with great force. Do not place objects, Important: Wireless phones, including this device, including installed or portable wireless equipment in the operate using radio signals, wireless networks, landline area over the air bag or in the air bag deployment area. If networks, and user-programmed functions. Because of in-vehicle wireless equipment is improperly installed and this, connections in all conditions cannot be guaranteed. the air bag inflates, serious injury could result. You should never rely solely on any wireless device for Using your device while flying in aircraft is prohibited. essential communications like medical emergencies. Switch off your device before boarding an aircraft. The use To make an emergency call: 48 of wireless teledevices in an aircraft may be dangerous to the operation of the aircraft, disrupt the wireless telephone network, and may be illegal. 1. If the device is not on, switch it on. Check for adequate signal strength.