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Hearing aids, Vehicles, Potentially explosive environments – Nokia 3720 User Manual

Page 47: Emergency calls, Certification information (sar), Additional safety information 47

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Hold the wireless device to the ear opposite the medical

device to minimise the potential for interference.

Turn the wireless device off immediately if there is any

reason to suspect that interference is taking place.

Read and follow the directions from the manufacturer

of their implanted medical device.

If you have any questions about using your wireless device

with an implanted medical device, consult your health care

provider.

Hearing aids
Some digital wireless devices may interfere with some

hearing aids. If interference occurs, consult your service

provider.

Vehicles
RF signals may affect improperly installed or inadequately

shielded electronic systems in motor vehicles such as

electronic fuel injection systems, electronic antiskid

(antilock) braking systems, electronic speed control systems,

and air bag systems. For more information, check with the

manufacturer, or its representative, of your vehicle or any

equipment that has been added.

Only qualified personnel should service the device or install

the device in a vehicle. Faulty installation or service may be

dangerous and may invalidate any warranty that may apply

to the device. Check regularly that all wireless device

equipment in your vehicle is mounted and operating

properly. Do not store or carry flammable liquids, gases, or

explosive materials in the same compartment as the device,

its parts, or accessories. For vehicles equipped with an air bag,

remember that air bags inflate with great force. Do not place

objects, including installed or portable wireless equipment in

the area over the air bag or in the air bag deployment area.

If in-vehicle wireless equipment is improperly installed and

the air bag inflates, serious injury could result.

Using your device while flying in aircraft is prohibited. 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, disrupt the wireless telephone

network, and may be illegal.

Potentially explosive environments
Switch off your device when in any area with a potentially

explosive atmosphere, and obey all signs and instructions.

Potentially explosive atmospheres include areas where you

would normally be advised to turn off your vehicle engine.

Sparks in such areas could cause an explosion or fire resulting

in bodily injury or even death. Switch off the device at

refuelling points such as near gas pumps at service stations.

Observe restrictions on the use of radio equipment 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 below deck on boats, chemical

transfer or storage facilities and areas 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 will 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.

Change your profile from offline or flight profile

mode to an active profile.

2

Press the end key as many times as needed to clear the

display and ready the device for calls.

3

Enter the official emergency number for your present

location. Emergency numbers vary by location.

4

Press the call key.

When making an emergency call, give all the necessary

information as accurately as possible. Your wireless device

may be the only means of communication at the scene of an

accident. Do not end the call until given permission to do so.

Certification information (SAR)
This mobile device meets guidelines for exposure to

radio waves.

Your mobile device is a radio transmitter and receiver. It is

designed not to exceed the limits for exposure to radio waves

recommended by international guidelines. These guidelines

were developed by the independent scientific organisation

ICNIRP and include safety margins designed to assure the

protection of all persons, regardless of age and health.

The exposure guidelines for mobile devices employ a unit of

measurement known as the Specific Absorption Rate or SAR.

Additional safety information 47

© 2009 Nokia. All rights reserved.

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