Samsung DS5021D - Manual (Page 84)

Page 70 © SAMSUNG Electronics Co., Ltd.
CONVENIENT FEATURES
Cancelling Do Not Disturb
The procedure for cancelling the Do Not Disturb mode is described below.
1.
Check if the status indicator is flashing.
2.
Press the [DND] button or dial [4] [0] [0].
3.
The status indicator goes off.
One Time DND
If you do not wish to be disturbed while you
are on a call, press the [DND] button and
set the station to Do Not Disturb. When you
complete the call, the Do Not Disturb mode is
automatically cancelled and new calls will be
received.
A [DND] button is needed to use this feature.