Yealink SIP-T28P - Manual (Page 99)

Basic Call Features
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3. Click Confirm to accept the change.
Note
To activate DND in phone mode:
1. Press the DND soft key when the phone is idle.
The icon on the idle screen indicates that DND is enabled.
Incoming calls will be rejected automatically and "n New Missed Call(s)" ("n"
indicates the number of the missed calls) will appear on the LCD screen.
To activate DND in custom mode for a specific account:
1. Press the DND soft key when the phone is idle.
The LCD screen displays a list of the accounts on the phone.
2. Press or to select the desired account.
3. Press or soft key to select On to activate DND.
4. Press the Save soft key to accept the change.
The icon appears on the idle screen and the associated line icon changes
to .
DND mode is configurable via web user interface only.