I know the way how to start streaming pvt session but unfortunately I did not find the way to record the it

Both ways that I knew died long time ago. Now, I am not using rtmpdump at all for that but it looks like only rtmpdump will be able to save it. Unfortunately rtmpdump commands are so complicated for me and I never manage to learn them.
So, if anyone is interested and more familiar with it and is interested in recording pvts at IML I would send him e-mail with explanation how I am starting the pvt stream. I hope that could lead to rec. solution.
Looking forward to exchange my knowledge with anyone who is interested into this !