Nokia 3390 Nokia 3390 User Guide in English - Page 127

Pacemakers Pacemaker manufacturers recommend that a minimum separation of 6 inches (20 cm) should be maintained between a handheld wireless phone and a pacemaker to avoid potential interference with the pacemaker. These recommendations are consistent with the independent research by and recommendations of Wireless Technology Research. Persons with pacemakers: • Should always keep the phone more than 6 inches (20 cm) from their pacemakers when the phone is switched on. • Should not carry the phone in a breast pocket. • Should use the ear opposite the pacemaker to minimize the potential for interference. Caution: If you have any reason to suspect that interference is taking place, switch off your phone immediately. Hearing aids Some digital wireless phones could interfere with some hearing aids. In the event of such interference, you might want to consult your service provider. Other medical devices Operation of any radio transmitting equipment, including cellular phones, could interfere with the functionality of inadequately protected medical devices. Consult a physician or the manufacturer of the medical device to determine if they are adequately shielded from external RF energy. Also contact these authorities if you have any questions. Switch off your phone in health care facilities or where any posted regulations instruct you to do so. Hospitals or health care facilities could be using equipment that is sensitive to external RF energy. 18 Vehicles RF signals could improperly affect installed or inadequately shielded electronic systems in motor vehicles. These could include electronic fuel injection systems, electronic anti-skid (anti-lock) braking systems, electronic speed control systems, or air bag systems. [ 114 ]