280Reference information Do not point the infrared beam at anyone’s eye or allow it to interfere with otherinfrared devices.To maintain compliance with radio frequency exposure guidelines, always useNokia approved accessories. Place the communicator in an approved carrying caseor belt clip when carrying the communicator while the phone is on.Electronic DevicesMost modern electronic equipment is shielded from radio frequency (RF) signals.However, certain electronic equipment may not be shielded against the RF signalsfrom your communicator.Pacemakers: Pacemaker manufacturers recommend that a minimum separation of20 cm (6 inches) be maintained between a hand-held wireless phone and a pacemakerto avoid potential interference with the pacemaker. These recommendations areconsistent with the independent research by and recommendations of WirelessTechnology Research. Persons with pacemakers:Should always keep the communicator more than 20 cm (6 inches) from theirpacemaker when the phone is switched on;Should not carry the communicator in a breast pocket;Should use the ear opposite the pacemaker to minimize the potential for interference.If you have any reason to suspect that interference is taking place, switch off thephone of your communicator immediately.Hearing aids: Some digital wireless phones may interfere with some hearing aids.In the event of such interference, you may want to consult your service provider.