71 Getting StartedRead all information in this section before you use your handset.1.1 Handset InformationDanger: Ensure that the adapter voltage is the same as the electrical outletvoltage.The handset uses radio signals and does not guarantee a connectionin all circumstances. Do not rely on a cordless handset to make emergencycalls.Never use your handset:• in the vicinity of electrical detonators• in shielded rooms• in areas where radio transmission is forbidden• in aircraftsDo not place a handset near:• water, moisture or damp areas• heat sources, direct sunlight or unventilated areas• devices which generate strong magnetic fields such as electricalappliances, fluorescent lamps, computers, radios, televisions or faxmachines• areas where the handset can be covered, its ventilation impaired, liquidspilled on the unit or objects inserted into the handset through anyopenings.• areas with dust, vibration, shock or temperature extremesCheck for small metal objects in the handset earpiece/mouthpiece beforeusing the handset.Do not store or locate flammable liquids, gases, or explosive materials inthe same compartment or vicinity as the cordless handset, its parts oraccessories.