Health and safety information25Posted facilitiesSwitch off your phone in any facility where postednotices require you to do so.Potentially explosive environmentsSwitch off your phone when in any area with apotentially explosive atmosphere and obey all signsand instructions. Sparks in such areas could cause anexplosion or fire resulting in bodily injury or evendeath.Users are advised to switch off the phone while at arefueling point (service station). Users are reminded ofthe need to observe restrictions on the use of radioequipment in fuel depots (fuel storage and distributionareas), chemical plants or where blasting operationsare in progress.Areas with a potentially explosive atmosphere areoften but not always clearly marked. They include theareas below deck on boats, chemical transfer orstorage facilities, vehicles using liquefied petroleumgas (such as propane or butane), areas where the aircontains chemicals or particles, such as grain, dust ormetal powders, and any other area where you wouldnormally be advised to turn off your vehicle engine.Emergency callsThis phone, like any wireless phone, operates usingradio signals, wireless and landline networks as well asuser-programmed functions, which cannot guaranteeconnection in all conditions. Therefore, you shouldnever rely solely on any wireless phone for essentialcommunications (medical emergencies, for example).Remember, to make or receive any calls the phonemust be switched on and in a service area withadequate signal strength. Emergency calls may not bepossible on all wireless phone networks or whencertain network services and/or phone features are inuse. Check with local service providers.To make an emergency call:If the phone is not on, switch it on.1. Key in the emergency number for your presentlocation (for example, 911 or other official