Viewing cameras from different registrars in one place?

Question

CCTV

Need help finding software.
Given:
6 branches. Each branch has ip cameras and a video recorder (Chinese noname)
Task:
Organize live viewing of cameras for about 10 users, with the ability to choose which cameras to watch.
That is, user1 watches one camera from each branch, user2 watches all cameras of only one branch, etc.
Question:
Is there such free software that will collect all the cameras in a heap? Preferably on the Web.

Answer 1

https://habr.com/company/intems/blog/322634/
6th paragraph for example Secur OS lite. Only channels from branches will need to be very thick.