138RReeffeerreennccee IInnffoorrmmaattiioonn• Do not attempt to open the phone. Non-experthandling of the phone may damage it.• Do not drop or knock the phone. Rough handlingmay damage the internal circuits.• Do not use harsh chemicals, cleaning solvents orstrong detergents to clean the phone. Wipe it witha soft cloth slightly dampened in mild, soapy water.• If the phone or any of its accessories are notworking properly, take them to your nearestqualified service centre. The personnel there willassist you, and if necessary, arrange for the phoneto be repaired.Emergency CallsImportant! This phone, like any cellular phone, usesradio signals, cellular and landlinenetworks, as well as user-programmedfunctions that cannot guaranteeconnection in all conditions. Therefore,you should never rely solely on anycellular phone for essential communi-cations (medical emergencies for example).Remember, to make or receive any calls, the phonemust be switched on and in a service area withadequate cellular signal strength.Emergency calls may not be possible on all cellularphone networks or when certain network servicesand/or phone features are in use. Check with localcellular service providers.139GlossaryTo help you understand the main technical terms andabbreviations used in this booklet and take fulladvantage of the features on your mobile phone, hereare a few definitions.ALS (Alternate Line Service)Capability of associating two alternate lines with oneSIM card. You can make and receive calls on eitherline as required.Call BarringAbility to restrict outgoing and incoming calls.Call DivertingAbility to reroute calls to another number.Call HoldingAbility to put one call on standby while answering ormaking another call; you can then switch betweenthe two calls, as required.Call WaitingAbility to inform users that they have an incoming callwhen engaged on another call.