LG U8150 Owner's Manual

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phone is switched on.
Never carry your phone in your breast pocket.
Use the ear opposite to the pacemaker to minimise
the potential for interference.
Switch off your phone immediately if you suspect
that interference is being caused. 
10
hearing aids
Certain hearing aids can be interfered with by your mobile
phone. If this occurs, please consult the hearing aid
manufacturer.
11
other medical equipment
Operation of any radio transmitting equipment, including mobile
phones, may interfere with the working of other inadequately
protected medical devices. Consult a physician or the
manufacturer of the medical device if you have any questions.
Always switch off your phone in health care facilities when any
regulations posted in these areas instruct you to do so. 
12
aircraft safety
Using your phone while in the air is prohibited. Switch off your
phone before boarding any aircraft. The use of mobile
telephones in an aircraft may be dangerous to the operation of
the aircraft, disrupt the mobile telephone network, and is illegal.
Note: Failure to observe this instruction may lead to
suspension or denial of Orange phone services to the offender,
or legal action or both.
13
explosive materials
You are advised to switch off your phone when at a
petrol station or other refuelling point. You must observe
restrictions on the use of radio equipment in fuel depots
(fuel storage and distribution areas); chemical plants or
where blasting operations are in progress.