Install jabber-muc by entering the following commands in the terminal:
sudo apt update sudo apt install jabber-muc
Description:
Multi User Conference component for the Jabber IM server
Multi User Conference component provides an implementation of XEP-0045 which allow the creation of multi-users chat. So with jabber-muc, you can run your own Jabber chatrooms server.
Homepage: https://web.archive.org/web/https://download.gna.org/mu-conference/
Version: 0.8-6
Section: universe/net