79Users are advised to switch off the phone while at a refueling point(service station). Users are reminded of the need to observerestrictions on the use of radio equipment in fuel depots (fuelstorage and distribution areas), chemical plants or where blastingoperations are in progress.Areas with a potentially explosive atmosphere are often but notalways clearly marked. They include below deck on boats; chemicaltransfer or storage facilities; vehicles using liquefied petroleum gas(such as propane or butane); areas where the air contains chemicalsor particles, such as grain, dust or metal powders; and any other areawhere you would normally be advised to turn off your vehicle engine.VehiclesOnly qualified personnel should service the phone, or install thephone in a vehicle. Faulty installation or service may be dangerousand may invalidate any warranty which may apply to the unit.Check regularly that all wireless phone equipment in your vehicle ismounted and operating properly.Do not store or carry flammable liquids, gases or explosive materialsin the same compartment as the phone, its parts or accessories.For vehicles equipped with an air bag, remember that an air baginflates with great force. Do not place objects, including bothinstalled or portable wireless equipment, in the area over the air bagor in the air bag deployment area. If in-vehicle wireless equipment isimproperly installed and the air bag inflates, serious injury couldresult.Switch off your phone before boarding an aircraft. The use ofwireless telephones in an aircraft may be dangerous to the operationof the aircraft, disrupt the wireless telephone network and may beillegal.Failure to observe these instructions may lead to the suspension ordenial of telephone services to the offender, or legal action, or both.Emergency callsIMPORTANT!This phone, like any wireless phone, operates using radio signals,wireless and landline networks as well as user- programmedfunctions which cannot guarantee connection in all conditions.Therefore, you should never rely solely upon any wireless phone foressential communications (e.g. medical emergencies).