Telecom R303 User Manual page 53

places such as hospitals, airports, service stations, refineries,
chemical works etc. Switch off your phone as required.
PRECAUTIONS FOR EXPLOSIVE ATMOSPHERES
4.5

Switch off your phone prior to entering any area with potentially
explosive atmospheres, such as fuel or chemical transfer or
storage facilities.

Do not remove, install, or charge batteries in such areas. Spark
in a potentially explosive atmosphere can cause explosion or fire.

To avoid possible interference with blasting operations switch
off your phone when you are near electrical blasting caps, in a
blasting area, or in areas posted "Turn off electronic devices."
Obey all signs and instructions.

Do not store the phone with flammable or explosive articles.
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