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Echo
or
noise
can'tbe
turned on
Standby time
becomes
short
2.In a dense period, the line
call is in congestion which
cannot be calling.
3. Away from the network
operator's base station
1. The network operator's
poor trunks caused
2. call line of some places is
in bad
The battery is exhausted
1.
Standby
something
to
network operators' system
setting. The same
phone is used in different
networks,standby time may
not the same.
2. The battery wears,and
the
performance
gradually
reduced
using a few years
time
have
do
with
cell
will
be
after
24
Try to avoid
You
can
network operators to
provide
the
area chart.
Hang
up
and
again, trunks' choice
may exchange for good
lines.
To recharge the battery
In the signal receiving
bad
areas,
temporarily shut down
Replace new battery
request
service
dial
please
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