Disconnect this unit from power outlet/theEthernet cables if it emits smoke, an abnormalsmell, or makes unusual noise. Theseconditions can cause fire or electric shock.Confirm that smoke has stopped and contactan authorised service centre.InstallationDo not make power connections that exceedthe ratings for the AC outlet or powerequipment. If the power rating of a surgeprotector, etc. is exceeded, it can cause a firedue to heat buildup.Do not bundle up the AC adaptor cord. Thecord may become damaged, which can leadto a fire, electric shock, or electric short.The unit should only be connected to a powersupply of the type as shown on the label onthe unit.Completely insert the AC adaptor into the ACoutlet. Failure to do so may cause electricshock and/or excessive heat resulting in a fire.PlacementCare should be taken so that objects do notfall onto, and liquids are not spilled into, theunit. Do not subject this unit to excessivesmoke, dust, moisture, mechanical vibration,shock, or direct sunlight.Do not place heavy objects on top of this unit.Place this unit on a flat surface.Allow 10 cm clearance around the unit forproper ventilation.Wall MountingDo not mount the unit in a manner other thanthat described in this manual.Make sure that the wall that the unit will beattached to is strong enough to support theunit (approx. 1.09 kg). If not, it is necessaryfor the wall to be reinforced.Only use the optional wall mount kit with theunit. The wall mount kit includes thenecessary screws, washers, and wallmounting adaptor.When driving the screws into the wall, becareful to avoid touching any metal laths, wirelaths or metal plates in the wall.When this unit is no longer in use, make sureto detach it from the wall.CAUTIONKeep the unit away from heating appliancesand devices that generate electrical noise,such as fluorescent lamps, motors andtelevisions. These noise sources can interferewith the performance of the unit. It also shouldnot be placed in rooms where the temperatureis less than 0 °C or greater than 40 °C.Wipe the unit with a soft cloth. Do not cleanthe unit with abrasive powders or withchemical agents such as benzene or thinner.The handset hook poses a choking hazard.Keep the handset hook out of reach ofchildren.When left unused for a long period of time,disconnect the unit from the AC outlet. Whenthe unit receives power from a PoE powersupply, disconnect the Ethernet cables.When the unit is mounted on a wall, makesure the cables are securely fastened to thewall.Notice• If the unit does not operate properly, disconnectthe AC adaptor cord and Ethernet cables andthen connect again.• If you are having problems making calls,disconnect the Ethernet cables and connect aknown working SIP Phone. If the known workingSIP Phone operates properly, have thedefective SIP Phone repaired by an authorisedservice centre. If the known working SIP Phonedoes not operate properly, check the SIP serverand the Ethernet cables.• Under power failure conditions, the SIP Phonemay not operate. Please ensure that a separatetelephone, not dependent on local power, isavailable for use in remote sites in case ofemergency.• For information regarding network setup of theSIP Phone such as IP addresses, please see"Network Settings (Page 45)".Document Version 2011-09 Operating Instructions 5For Your Safety