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AASTRA DT4x2 for BusinessPhone User Guide EN User Manual

Page 120

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Troubleshooting

BusinessPhone – Cordless DT412/DT422/DT432

120

Keys locked

Unlock

The key pad is

locked.

Press Menu key

followed by

*

.

No system

Cannot connect to

the network, the

Cordless is not

registered or out of

range.

Contact system

administrator.

Fault / Display

Probable cause

Action or
comment