Samsung OfficeServ DS-5021D User Manual page 119

Timer Function
For phones, the timer can be used as a stopwatch.
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1 Press the [TIMER] button, or select [TIMER] from
the Other menu on the LCD screen using the [Scroll]
button and Soft button when the phone is in idle mode.
2 Press the [TIMER] button again to stop the timer.
3 Note the elapsed time on the LCD screen.
4 Lift and replace the handset and the time and date
display on the LCD will resume.
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