AASTRA 7446ip (5446ip) for MD Evolution User Guide EN - Manual (Page 101)

Troubleshooting
17 Troubleshooting
This section describes common operational problems and warnings, and
suggests actions to solve the problems.
Trouble: The message “No connection to network” appears
Cause: There is no connection to the LAN.
Solution: Check the LAN cable between the LAN port and the phone.
Trouble: The phone is locked
Cause: There is disturbance in the LAN.
Solution: Restart the phone by pressing the C (clear), mute and# keys
simultaneously for 2 seconds.
Trouble: The access warning triangle appears in the display
Cause: There is disturbance in the LAN or in the exchange.
Solution: Although some features may not work, the phone can still be used
for making and receiving calls. If the trouble persists, contact the system
administrator.
Trouble: You receive a congestion tone when you dial an area code
Cause: You are not allowed to call the area code.
Solution:Call the operator and ask for help to establish the call.
Trouble: The phone does not work properly
Cause: The network settings may be incorrectly configured.
Solution:Contact your system administrator.
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