This is becoming a priority with a deadline now, so we can use an opensource tool for remote participants at the upcoming Kosmos Summit.
Ideally using existing Kosmos XMPP/LDAP accounts for permission to create rooms, of course. And probably even kosmos.chat MUC rooms for the chat in Jitsi.
We were just charged again for €7.51. Pretty sure we're not using anything for that money anymore.
Just a small thing I caught: I tried adding a user with a $ char in the pw, and it didn't store the correct password. (In fact, I have no idea how I can reset it now.)
Not a biggie, as you would usually give out a simple "changeme" or similar, when using this manual method.
I forgot that @bkero told me about https://github.com/aruhier/virt-backup which looks pretty good to me.