we need for our 2 pojects that are running on same engine (PHP) add Red5 server for communication as livechat. It should be able to one on one (private), one on few (private), one on many (public), save session as video, replay session. There are some coins that are transfered from watcher to broadcaster in time of online broadcast (private session). We can use other solution than Red5. But we know Red5 can do it.