For Your SafetyTo reduce the risk of injury, loss of life, electric shock,fire, malfunction, and damage to equipment or property,always observe the following safety precautions.Explanation of symbolsThe following symbols are used to classify and describethe level of hazard and injury caused when thedenotation is disregarded and improper use isperformed.WARNINGDenotes a potential hazard that could result inserious injury or death.CAUTIONDenotes a hazard that could result in minor injury ordamage to the unit or other equipment.The following symbols are used to classify and describethe type of instructions to be observed.This symbol is used to alert users to a specificoperating procedure that must not beperformed.This symbol is used to alert users to a specificoperating procedure that must be followed inorder to operate the unit safely.WARNINGGeneral SafetyDo not disassemble this unit. Dangerouselectrical shock could result. The unit mustonly be disassembled and repaired byqualified service technicians.Never attempt to insert wires, pins, etc. intothe vents or other holes of this unit.To prevent possible fire or electric shock, donot expose this unit to rain or moisture.Do not splash water on the AC adaptor or thepower cord, nor get them wet.Doing so can result in fire, electric shock, orinjury. If they do get wet, immediatelydisconnect the AC adaptor and power cord,and contact an authorised service centre.Do not touch the AC adaptor for extendedperiods of time. Doing so can lead tolow-degree burns.Unplug this unit from the AC outlet and havethe unit serviced by qualified servicepersonnel in the following cases:A. When the power supply cord or plug isdamaged or frayed.B. If liquid has been spilled on the unit.C. If the unit has been exposed to rain orwater.D. If the unit does not work normally byfollowing the manual. Adjust only controlscovered by the manual. Improperadjustment may require repair by anauthorised service centre.E. If the unit has been dropped, or damaged.F. If the unit’s performance deteriorates.If damage to the unit exposes any internalparts, immediately disconnect the cable orcord. If the power is supplied from the networkto the SIP Phone [Power-over-Ethernet],disconnect the Ethernet cables. Otherwise,disconnect the AC adaptor cord. Then returnthis unit to an authorised service centre.This handset earpiece is magnetised and mayretain small ferrous objects.The use of excessive sound volume throughearphones, headphones, or headsets maycause hearing loss.4 Operating Instructions Document Version 2011-09For Your Safety