User`s manual

310HD IP Phone
User's Manual 40 Document #: LTRT-24703
4.10 Activating Do Not Disturb
The Do Not Disturb feature allows you to prevent the phone from ringing and receiving incoming
calls (i.e., rejects incoming calls). When Do Not Disturb is activated and someone calls your
phone, the caller hears a busy tone.
Note: If your phone is deployed with AudioCodes solution for Microsoft® Lync™
Server 2010, ignore this section and see Section 4.11.
 To activate Do Not Disturb:

Press the DND key; the “Do Not Disturb” message is displayed on the screen:
 To deactivate Do Not Disturb:

Press the DND key; the “Do Not Disturb” message no longer appears on the screen.