Huawei B686 Network Router User Manual


 
19
The call volume is too high or too low. What can I
do?
During a call, use the navigation keys to adjust the volume.
12 Safety Information
This section contains important information pertaining to the operating
instructions of your device. It also contains information about how to use the
device safely. Read this information carefully before using your device.
Electronic Device
Do not use your device if using your device is prohibited. Do not use the device
when using your device causes danger or interference with electronic devices.
Medical Device
Follow rules and regulations set forth by hospitals and health care facilities. Do
not use your device when using the device is prohibited.
Some wireless devices may affect the performance of hearing aids or
pacemakers. For any such problems, consult your service provider.
If you are using an electronic medical device, consult the doctor or the device
manufacturer to confirm whether radio waves affect the operation of this
device.
Potentially Explosive Atmosphere
Do not use your device in any area with a potentially explosive atmosphere, and
comply with all signs and instructions. Areas that may have potentially explosive
atmospheres include the areas where you would normally be advised to turn off
your vehicle engine. Triggering of sparks in such areas could cause an explosion
or a fire, resulting in bodily injuries or even deaths. Do not use your device at
refueling points such as service stations. Comply with restrictions on the use of
radio equipment in fuel depots, storage, and distribution areas, and chemical
plants. In addition, adhere to restrictions in areas where blasting operations are
in progress. Before using the device, watch out for areas that have potentially
explosive atmospheres that are often, but not always, clearly marked. Such
locations include areas below the deck on boats, chemical transfer or storage
facilities, and areas where the air contains chemicals or particles such as grain,
dust, or metal powders. Ask the manufacturers of vehicles using liquefied
petroleum gas (such as propane or butane) whether this device can be safely
used in their vicinity.
Traffic Security
Observe local laws and regulations while using the device. To prevent
accidents, do not use your wireless device while driving.