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NT_ANEP_P4GU_VoLTE_EN_12-05-2022
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PROBLEM RESOLUTION
This chapter recalls the most common problems that can occur. Before calling
technical assistance, carry out these simple checks.
Condition
Causes
Solutions
All LEDs are off
P4GU not powered
Check Power
The red LED flashes
(as visualized
on 1 page 42)
The SIM card is not
inserted or incorrectly
inserted
Correctly insert the
SIM card in its
lodging
Protected SIM card
by PIN code
Remove PIN code with
mobile phone
Expired SIM card
or damaged
Check operation
of the SIM card with a
mobile phone
SIM card not compatible
Use a GSM / UMTS / LTE
SIM card
Perform a control test with
the SIM card of another
operator
Antenna not connected or
cable damaged
Check the antenna
connection and the
integrity of the cable
Lack of mobile network
coverage
Check for the presence of
mobile network coverage
with a mobile phone
Supply insufficient
check power supply
Generic problem
software
Switch off and on again
the P4GU
The red LED flashes
(as visualized
on 2 page 42)
but the green one is off
Mobile network signal level
too low to guarantee the
call
Move the P4GU and the
antenna to a position
where the signal will be
better