Nortel 744X User Manual

Also see for 413X: User guide

7Getting StartedRead all the information in this sectionbefore you use your handset.Handset informationEnsure that the adapter voltage is thesame as the electrical outlet voltage.The 743X/744X handset uses radiosignals and does not guarantee aconnection in all circumstances. Donot rely on a cordless handset tomake emergency calls.Never use your handset:• in the vicinity of electricaldetonators• in shielded rooms• in areas where radio transmission isforbidden• in aircraftDo not place a handset near:• water, moisture or damp areas• heat sources, direct sunlight orunventilated areas• devices which generate strongmagnetic fields such as electricalappliances, fluorescent lamps,computers, radios, televisions orfax machines• areas where the handset can becovered, its ventilation impaired,liquid spilled on the unit or objectsinserted into the handset throughany openings.