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51
Telephoning options
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
Changing the earpiece volume during a call
To change the earpiece volume during a call
•
Press the
VOLUME UP/DOWN
keys once or more.
If the earpiece is at maximum or minimum volume,
you hear a warning tone.