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PROBLEM-DETECTION GUIDE
This section shows a list of solutions to the most commonly encountered
problems.
Detected problem Root cause Solution
All LEDs are unlit Gateway not supplied Check power supply
The red LED is lit
steadily
SIM card not present or
not correctly inserted
Correctly insert the SIM card in
the dedicated location
SIM card locked by PIN
code
Disable the PIN code through
your mobile phone
SIM card expired or
damaged
Check the SIM card operation
on your mobile phone
Unconnected antenna or
damaged connection
cable
Check the antenna connection
and the correct operation of
the cable
Signal absence
Check the signal strength by
your mobile phone
Insufficient power supply Check the power supply
Generic SW problem
Switch off and back on the
gateway
The red LED blinks, but
the green LED is unlit
Signal level is too low to
allow outgoing calls
Move the gateway and the
antenna into a better position
The green LED is lit
steadily
SIM card locked by PUK
code
Insert the PUK code through
your mobile phone
The autodialer
connected to gateway
does not detect the
telephone line
Telephone line voltage
on TEL terminal and on
RJ-11 plug is insufficient
Increase the voltage (see
programming “Telephone line
voltage”)
The autodialer
connected to gateway
does not succeed in
forwarding a call
The autodialer performs
a tone detection over the
telephone line
Set line tone generation by
4G.VoLTE (see programming
“Line tones” option 2 )