FreeSWITCH conferencing operation

How to invoke conferences from dialplan? How to send an incoming call to join an already running conference? How to originate calls that will join the callees in the conference? Also, conferences and video-conferences can be much more productive and interesting if participants avoid to talk one on top of each other, if video follow who is speaking, if a presenter is given possibility to show his screenshare or himself talking depending of the moment (after a while, any slide can be boring).

In next sections we'll look at how to invoke and manage running conferences.

Conference Application (dialplan)

Callers reach conferences via the conference application, which is usually invoked from the Dialplan or from the event socket via API calls. The general syntax for connecting a caller to a conference is as follows:

<action application="conference" data="confname@profilename"/> 

confname is an arbitrary name for this conference room, and profilename is the profile...