LevelOne IAT-1000 - Manual (Page 13)

4.2.3. Make Announcements
1 Connect a microphone or a headset to the Windows PC running the
IP Audiocast Manager.
2 Click on the menu bar and the Announce Dialog Box pops up.
3 Choose a recording device from the Audio Recording Devices and
select the Zones to announce.
4 Click Announce on the Announce Dialog Box to start the
announcement.
5 Click Stop on the Announce Dialog Box to stop the announcement.
4.2.4. Manage Zones
Right-click on a Zone and click Add to create a new Zone, Delete to
delete an existing Zone, or Rename to give a new name to a Zone.
For IAT-1900/1920 only