9 Getting StartedYour Personal Computer or Handheld Computer incorporating wirelessWAN modem receives and transmits radio frequency energy whileswitched on. Remember that interference can occur if it is used close toTV sets, radios, computers or inadequately shielded equipment. Followany special regulations and always switch off Personal Computer orHandheld Computer incorporating wireless WAN modem whereverforbidden, or when you suspect that it may cause interference or danger.Road safety comes first! Do not use a Personal Computer or HandheldComputer incorporating wireless WAN modem while driving a vehicle.Do not place the computer with wireless WAN modem in an area whereit could cause personal injury to the driver or passengers. It isrecommended to stow the unit in the boot or secure stowage area whiledriving.Do not place the computer with wireless WAN modem in an area overan air bag or in the vicinity where an air bag may deploy.Air bags inflate with great force and if the computer with wireless WANmodem is placed in the air bag deployment area may be propelled withgreat force and cause serious injury to occupants of the vehicle.IMPORTANT!Personal Computer or Handheld Computer incorporating wireless WANmodem operate using radio signals and cellular networks cannot beguaranteed to connect in all conditions. Therefore, you should never relysolely upon any wireless device for essential communications, for ex-ample emergency calls.Remember, in order to make or receive calls, Personal Computer orHandheld Computer incorporating wireless WAN modem must beswitched on and in a coverage area with adequate cellular signalstrength.Some networks do not allow for emergency calls if certain networkservices or phone features are in use (e.g. lock functions, fixed dialingetc.). You may need to deactivate those features before you can makean emergency call.Some networks require that a valid SIM card be properly inserted inPersonal Computer or Handheld Computer incorporating wireless WANmodem.