Nokia 2720 - Manual (Page 66)

Switch off your device before boarding
an aircraft. The use of wireless
teledevices in an aircraft may be
dangerous to the operation of the
aircraft and may be illegal.
Potentially explosive environments
Switch off your device in any area with
a potentially explosive atmosphere.
Obey all posted instructions. Sparks in
such areas could cause an explosion or
fire resulting in bodily injury or death.
Switch off the device at refuelling points
such as near gas pumps at service
stations. Observe restrictions in fuel
depots, storage, and distribution areas;
chemical plants; or where blasting
operations are in progress. Areas with a
potentially explosive atmosphere are
often, but not always, clearly marked.
They include areas where you would be
advised to turn off your vehicle engine,
below deck on boats, chemical transfer
or storage facilities and where the air
contains chemicals or particles such as
grain, dust, or metal powders. You
should check with the manufacturers of
vehicles using liquefied petroleum gas
(such as propane or butane) to
determine if this device can be safely
used in their vicinity.
Emergency calls
Important: This device operates using
radio signals, wireless networks,
landline networks, and user-
programmed functions. If your device
supports voice calls over the internet
(internet calls), activate both the
internet calls and the cellular phone. The
device may attempt to make emergency
calls over both the cellular networks and
through your internet call provider if
both are activated. Connections in all
conditions cannot be guaranteed. You
should never rely solely on any wireless
device for essential communications
like medical emergencies.
To make an emergency call:
1 If the device is not on, switch it on.
Check for adequate signal
strength. Depending on your
device, you may also need to
complete the following:
• Insert a SIM card if your
device uses one.
• Remove certain call
restrictions you have
activated in your device.
66 Additional safety information
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