Aastra DT390 User Manual page 104

1424-EN/LZT 103 087 Uen F2 2012-03-02
Display shows
No system
The phone beeps
once a minute
(during max 30
minutes) with a low
tone followed by a
high tone (if enabled,
the vibrator also
follows the beeps).
SERVICE NEEDED
Parameters
corrupt
Note:
This display
message appears in
English only.
SERVICE NEEDED
Invalid IPDI
Note:
This display
message appears in
English only.
Battery low,
charge now
Enter IPEI
Phonebook is not
available at the
moment
Probable cause
The phone is out of
coverage or phone is
defective.
The phone is
defective.
Easy replacement
procedure not
followed correctly or
failure during easy
replacement
procedure.
The battery level is
low.
The phone is
blocked, that is, if you
have entered the
wrong PIN code
more than three
times.
The phonebook does
not respond, not
available at the
moment.
T
ROUBLESHOOTING
Action or comment
Stop the beep by
pressing .
Then go into range,
or contact the system
administrator. (When
you enter the
coverage area again,
it takes a few minutes
before the phone
registers into the
system again.)
Select the reset
option on the middle
soft key and upgrade
the phone's software.
If no reset option is
available, or if the
error is not resolved,
the phone needs
repair.
Send the phone to
service.
Send the phone to
service.
Charge or replace
the battery.
Enter the IPEI code
and press .
Try again later. If the
error is not resolved,
contact the system
administrator
104