7. Troubleshooting
Phenomenon
Analysis
Solution
Terminals cannot be
powered on.
The battery power may be too low to
power on the terminal.
Charge the battery.
Network registration
fails
or
network
cannot be found.
The terminal may be operating in
DMO.
Switch to TMO.
The terminal may be out of the
network coverage in TMO.
Check the signal strength. Make
sure the terminal is within the
network coverage.
The terminal may not be granted
network access.
Contact the network operator for the
terminal authorization.
Calls
cannot
be
established.
The terminal or the called party may
be out of the network coverage.
Check the signal strength. Make
sure the terminal is within the
network coverage.
The terminal may operate in an
improper mode.
Check the operation mode. Make
sure the terminal works in the right
mode.
A certain group call
cannot be initiated or
received.
The terminal may not be a member of
the target group.
Check whether the terminal is a
member of the group. If not, contact
your dealer to add the terminal to the
group.
The terminal may not be authorized to
access the target group.
Contact the network operator for the
terminal authorization.
Calls
are
always
interrupted.
The current channel may be assigned
to emergency calls or other calls with
higher priority.
Wait until the channel becomes
available and try again.
A
half-duplex
call
cannot
be
established.
The predefined time period for
establishing a call may expire.
Make sure the call is established
within the predefined time period.
The channel may be occupied by Wait until the channel becomes
Summary of Contents for TETRA PT560H F4
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