Conference service for Bitrix XMPP server?

Question

XMPP

Bitrix version - Corporate portal 15.0.2.
We asked a question to the support service, they answered that the conference service in the XMPP server has not yet been implemented. Interested in what solution exists at the moment for conferences. There may be another server/module with the ability to integrate users from Bitrix or a PHP library/modification to implement the service.
Or wait?

Answer 1

And the built-in IM portal does not fit? It's the same functionality.