TD 92476EN
05 October 2012 / Ver. PG1
User Manual
Aastra DT390 DECT Telephone
42
10 Troubleshooting
This section contains information on how to solve common operational problems, and
warnings you may receive.
Go through the following lists if you encounter any problems. If this checklist does not
solve the problem, contact your system administrator.
If others have similar problems, there may be a system error.
Operational problems
Error or warning messages
Fault Probable cause Action or comment
No display The battery level is low or the
telephone is defective.
Charge the battery or contact
system administrator.
No ringing (1) The telephone is muted
(2) The ring volume set to silent
(3) The telephone is defective.
(1) Long press on the Sound off
key
(2) Increase volume (Settings >
Sound & Alerts > Volume)
(3) Send the telephone for
service.
Display shows Probable cause Action or comment
No access The network is in range, but no
access rights.
Switch telephone off and then
switch it on again or contact
system administrator.
No System. The
telephone 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).
The telephone is out of coverage
or telephone is defective.
Stop the beep with the Silent
off key and go into range.
Note: When re-entering the
coverage area it can take a
couple of minutes before the
telephone automatically has
registered into the system.
or
contact system administrator.
SERVICE NEEDED
Parameters corrupt
The telephone is defective. Select reset option on the
middle soft key if available or if
no reset option is available or
fault does not resolve the
telephone needs repair. Note:
Display message only shown in
English.
No flash driver was
found.
Note: This display
message is only shown
in English
Failed to read from flash. Send the telephone for service.
To Next Page
Loading...
