First, on any machine you have to create Teams meeting.
On the multiCAM unit:
1. Install NDI Tools (you need them for the sound output) and launch their "Webcam input" tool.
2. Enable the NDI output.
3. Select the Multicam NDI output as the source for Newtek Webcam Input (of course, instead of "DENYS-PC", you should see the Multicam computer's name):
4. Join the Teams meeting, and click on the custom audio/video settings. There, select the "NewTek NDI Video" and "NewTek NDI Audio":
Notice that in the preview, the video is horizontally flipped, but it'll be fine on live, just ignore this mirror right here.