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Poor signal
connection
and off-line
Echo or
noise during
calls
5. You selected the wrong line
and cannot dial.
1. Use the mobile phone is in the
places where wireless network
cannot arrive effectively, near
high buildings or in the
basement.
2. Use the mobile phone during
the peak time of
communications, or
radio-wave line is jammed,
which leads to poor receiving
effect and makes it impossible
to call.
3. It‟s far from the transmitting
base station built by network
operator.
1. It‟s caused by the poor wireless
network trunks, regional
problem.
2. Poor receiving of lines in some
communication areas.
3. Possibly it is interfered by
radio waves.
Check if the line is correct
and try with Line 1.
Avoid it if possible.
Avoid it if possible.
Ask the network operator
to provide the service area
map.
Hook up and re-dial to
switch over to better line
possibly.
Avoid using the mobile
phone in areas with poor
receiving signals.
Avoid using the mobile
phone near the microwave
oven, speaker, TV set or
medical facilities, etc.
49
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