Troubleshooting - Aastra DT390 User Manual

C P
ORDLESS HONE FOR
18
103
MX-ONE™

Troubleshooting

This chapter contains information on how to solve common operational
problems, see table 12 on page 103, and warnings, see table 13 on page
103, you may receive. Go through the following lists if you encounter any
problems. If the checklists do not solve the problem, contact the system
administrator. If others have similar problems, there may be a system
error.
Table 12 Operational problems
Fault
No display
No ringing
Signal strength icon
off
Call is switched off
after 2 seconds
Table 13 Error or warning messages
Display shows
Enter PIN
No access
Probable cause
The battery level is
low or the phone is
defective.
1. The mute icon
is shown in the
display
2. The ring volume
set to silent
3.. The phone is
defective.
Out of system
coverage area or the
phone is defective.
The phone is
defective.
Probable cause
The phone's lock is
activated.
The network is in
range, but no access
rights.
1424-EN/LZT 103 087 Uen F2 2012-03-02
Action or comment
Charge the battery.
1. Make a long press
on ,
2. Increase
volume(settings>Sou
nd & Alerts>Volume
3. Send the phone for
service.
Enter coverage area.
Contact the system
administrator.
Action or comment
Enter the required
PIN code. If you have
lost the PIN code,
configure a new or do
a factory reset in
WinPDM.
Switch off the phone
and then switch it on
again.