Troubleshooting - Aastra DT690 User Manual

20

Troubleshooting

This section contains information on how to solve common operational
problems, see Table 8 on page 115, and warnings, see Table 9 on page 115,
you may receive. Go through the following lists if you encounter any problems.
If the checklists do not solve the problem, contact your system administrator. If
others have similar problems, there may be a system error.
Table 8
Fault
No display
No ringing
Signal strength icon off
Call is switched off after
2 seconds
Table 9
Display shows
Enter PIN
No access
1424-EN/LZT 103 088 Uen A2 2008-11-21
Operational problems
Probable cause
The battery level is
low or the phone is
defective.
The mute icon
shown in the display,
or ringer volume set to
silent, or the telephone
is defective.
Out of system coverage
area or the phone is
defective.
The phone is defective.
Error or warning messages
Probable cause
The telephone's lock is
activated.
The network is in range,
but no access rights.
Troubleshooting
Action or comment
Charge the battery
or contact system
administrator.
Make a long press
is
on , or increase
volume, or contact
system administrator.
Enter coverage area
or contact system
administrator.
Contact system
administrator.
Action or comment
Enter the required PIN
code. If PIN code lost,
contact your system
administrator.
Switch telephone off
and then switch it on
again or contact system
administrator.
115