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Hospitals 
Turn off your wireless device when requested to do so in hospitals, 
clinics or health care facilities. These requests are designed to 
prevent possible interference with sensitive medical equipment. 
Aircraft 
Turn off your wireless device whenever you are instructed to do 
so by airport or airline staff. 
Consult the airline staff about the use of wireless devices 
onboard the aircraft. If your device offers a ‘flight mode’, this must 
be enabled prior to boarding an aircraft. 
Interference in Cars 
Please note that because of possible interference with electronic 
equipment, some vehicle manufacturers forbid the use of mobile 
phones in their vehicles unless a hands-free kit with an external 
antenna is included in the installation. 
Explosive Environments 
Gas Stations and Explosive Atmospheres 
In locations with potentially explosive atmospheres, obey all 
posted signs to turn off wireless devices such as your phone or 
other radio equipment.