Troubleshooting
Long beep at regular intervals
A long beep at regular intervals is audible when the battery of the phone is almost flat. For charging the battery see “Charging the battery”on page 37.
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Using this guide Overview DT570 Contents Preparing for use Basic use Telephoning options Advanced telephoning Phone book
Mail Settings Extra features Using networks Tips Troubleshooting Maintenance Safety instructions
Technical specifications
Glossary
137