Calling external url once the conference has ended

I want to call an external url when the conference has ended (not when participant or admin leaves the conferences, but when the last participant leaves the conference), a conference reservation system to update the conference status as ended.
Is this possible ?

That calls an external API on conference start/end as well as occupant join/leave.

If you don’t care about the other event, you can just ignore those events on your API endpoint. Alternatively, you could modify the plugin and comment out these lines: