97
DT290
Troubleshooting
Troubleshooting
This section contains information on how to solve common
operational problems. Check if your problem is listed below. If it is
not or if the suggested action does not solve your problem, contact
your system administrator.
Fault
Probable cause
Action or
comment
No display
Battery low or
phone defective
Charge battery
Connect battery
Battery does not fit
properly or is
defective
Check battery or
contact system
administrator
No ringing
Ringer off icon on
or phone defective
Off icon on = Adjust
volume
Signal strength
icon off
Out of coverage
area, system or
phone defective
Enter coverage
area or contact
system
administrator
Battery icon
flashes slowly
Battery low
Charge battery
Battery icon on
Charging
complete, charger
still connected
Disconnect the
charger
4 short beeps every
30 seconds
Battery low
Charge battery
4 short beeps every
2 minutes
Out of coverage
area or not
connected
Enter coverage
area or contact
system
administrator
Phone BookEmpty
No names or
numbers stored in
the Phone Book
Add names or
numbers
Phone Book Full
Phone Book full,
you cannot add
names or numbers
Delete a name or
number
Subscr. List
Full
Already eight
subscriptions
Delete a
subscription