Do Not Disturb (Dnd); Exclusive Hold; Executive Override - Iwatsu ADIX VS Owner's Manual

Do Not Disturb (DND)

Allows you to make your phone busy so you will not be interrupted by
phone calls. However, the following type of calls may override Do Not
Disturb: DSS Calls, Operator Calls, Secretarial Calls and Executive
Override Calls.
Operation
To activate:
Press the Hold button HOLD/DND and the lamp will be solid
red
To cancel:
Press the Hold button HOLD/DND and the lamp will be off

Exclusive Hold

Allows you to place an outside call on Hold that cannot be picked up by
another extension.
Operation
To place a call on Exclusive Hold:
Press the button representing the outside line which you were
speaking on and the lamp will intermittently flash green
To retrieve a call from Exclusive Hold:
Press the outside line button once again for that call and the
lamp will flash green
The call may only be retrieved by the phone that placed it on
Exclusive Hold.

Executive Override

Is the same as a Busy Override with the additional ability to override an
extension in Do Not Disturb. This override may be either a voice
announcement or tone signal.
Operation
When dialing an extension that is busy or in Do Not Disturb
Do not hang up
Press the Override button OVER
Make a voice announcement or wait for a response to the tone
signaling, your choice is dependent on system programming
Digital Telephone User's Guide - 76