132Operating EnvironmentRemember to follow any special regulations in force in any area and always switchyour phone off whenever it is forbidden to use it, or when it may cause interferenceor danger. When connecting the phone or any accessory to another device, read itsuser's guide for detailed safety instructions. Do not connect incompatible products.As with other mobile radio transmitting equipment, users are advised that for thesatisfactory operation of the equipment and for the safety of personnel, it isrecommended that the equipment should only be used in the normal operatingposition (held to your ear with the antenna pointing over your shoulder if you areusing an external antenna).Using Your Phone Near Other 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 wireless phone. Consult the manufacturer to discuss alternatives.PacemakersPacemaker manufacturers recommend that a minimum distance of 15 cm (6 inches)be maintained between a wireless phone and a pacemaker to avoid potentialinterference with the pacemaker.These recommendations are consistent with the independent research andrecommendations of Wireless Technology Research.Persons with pacemakers:• should always keep the phone more than 15 cm (6 inches) from their pacemakerwhen the phone is switched on.• should not carry the phone in a breast pocket.• should use the ear opposite the pacemaker to minimize potential interference.If you have any reason to suspect that interference is taking place, switch yourphone off immediately.Hearing Aid Compatibility with Mobile PhonesWhen some mobile phones are used near some hearing devices (hearing aids andcochlear implants), users may detect a buzzing, humming, or whining noise. Somehearing devices are more immune than others to this interference noise, and phonesalso vary in the amount of interference they generate.The wireless telephone industry has developed ratings for some of their mobilephones, to assist hearing device users in finding phones that may be compatible