You can check also the CE4 and Red5 integration video post series.
We’ve done a little back room hacking over the Thanksgiving holiday to bring you a relatively easy way to add the free open source Red5 Flash Server to our Community Edition 3. The result? Live streaming for your events, RTMP streaming for your existing videos, and our webcam, all working with CE 3.
Your users can now record themselves via the Kaltura Contribution Wizard (KCW) webcam and those recordings can be saved, transcoded, and distributed like any other video.
RTMP streaming is available via the Kaltura Dynamic Player (KDP) for all of your videos.
You can also create multiple live streams in CE 3. A fun way to test them is to stream your webcam from your laptop using the free Adobe Flash Media Live Encoder.
Our Red5 Integration Guide has all the details!