User's Manual

GT300 User Manual
12
z SIM Contact: This will shows all numbers saved in SIM card, use Speed Dial 1/3 key
to scroll through the numbers. Press Send key to dial the selected number.
Note: This menu only shows when GT300 is set to use SIM card contracts function.
z SOS number: This will show the current set SOS alert number.
8 Troubleshooting and Safety info
8.1 Troubleshooting
Trouble Reason Solution
Poor reception Using the device in an area
with poor reception such as
near tall buildings or in a
basement where radio
waves cannot be
transmitted.
Try to avoid.
Using the device when the
network is busy, such as
during rush hour, when the
lines are full making it
impossible to get through.
Try to avoid.
Related to the distance from
the base station built by the
network.
You can request that the
network service provider
provide a service area plan.
Echo or noise Caused by poor network
relay, a regional problem.
Hang up and redial, if the
relay is changed then the line
may be better.
Some calling regions have
poor lines.
Shortening of the
standby time
Standby time is related to
the network system.
Please temporarily turn off
your device, as you are
located in an area with poor
reception.
Batteries need to be
replaced
Replace the batteries
When you cannot get a
signal, the phone will
continue to transmit in order
to find a base station,
thereby expending large
amounts of electricity will
cause the standby time to
decrease.
Please move to an area with
a strong signal or temporarily
turn off your device.