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Troubleshooting
Fault
No dialing tone after off-
hook.
Phone is buzzing after
off-hook.
Phone alerts or gives
other
prompt
after off-hook.
You hear noise after off-
hook.
The
system
sending dialing tone 30
seconds after off-hook.
Incoming call display is
abnormal.
No
response
power on the device.
Other
phenomenon.
Check
connection
telephone.
The telephone may be not compatible with
the device, change another one.
Make sure that SIM card is inserted
sounds
properly, and valid (consult with the
network carrier).
Make sure that the device is at least 2.5
meters away from other electronic devices.
If the device runs without antenna, and the
signal strength indicator is Yellow or Red,
install the antenna.
stops
Hook on, and then hook off again to make
a call.
Make sure the phone supports CLIP
function.
when
Power off the device, wait for seconds, and
re-power on.
Refer to the User Manual firstly, and then
check whether the parts, such as power
abnormal
supply adapter and antenna, etc. are
connected properly or not. If there is no
problem, restart the device.
Solution
the
antenna
between
17
connection
the
device
or
and
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