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4 phone locks, 1 activating the automatic key lock, Press menu, select , and press select – AASTRA DT390 for BusinessPhone User Guide EN User Manual

Page 84: Select locks and press select, Select automatic key lock and press select, Select on, and press select, Press back to save the setting, 2 activating the manual key lock, Press, Press lock

4 phone locks, 1 activating the automatic key lock, Press menu, select , and press select | Select locks and press select, Select automatic key lock and press select, Select on, and press select, Press back to save the setting, 2 activating the manual key lock, Press, Press lock | AASTRA DT390 for BusinessPhone User Guide EN User Manual | Page 84 / 106 4 phone locks, 1 activating the automatic key lock, Press menu, select , and press select | Select locks and press select, Select automatic key lock and press select, Select on, and press select, Press back to save the setting, 2 activating the manual key lock, Press, Press lock | AASTRA DT390 for BusinessPhone User Guide EN User Manual | Page 84 / 106
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