NEC Electra Elite IPK II System User Manual page 402

Document Revision 4C
Operation
To activate or deactivate Do Not Disturb while your extension is idle:
Multiline Terminal
1. Do not lift the handset.
2. Press the DND key.
- OR -
Press Speaker, and dial 747.
3. Dial the DND option code.
0 = Cancel DND
1 = Incoming Trunk Calls Blocked
2 = Paging, incoming Intercom, Call Forwards and Transferred Trunk Calls Blocked
3 = All Calls Blocked
4 = Call Forwards Blocked
Single Line Telephone
1. Lift the handset.
2. Dial 747.
3. Dial the DND option code.
0 = Cancel DND
1 = Incoming Trunk Calls Blocked
2 = Paging, Incoming Intercom, Call Forwards and Transferred Trunk Calls Blocked
3 = All Calls Blocked
4 = Call Forwards Blocked
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Electra Elite IPK II
Do Not Disturb