I think matrix has group voice calls. But maybe I'm wrong and they're just using Jitsi. I like that Matrix puts an emphasis on message history, but on XMPP tha

I think matrix has group voice calls. But maybe I'm wrong and they're just using Jitsi. I like that Matrix puts an emphasis on message history, but on XMPP that seems like an afterthought. For example on XMPP multi user chats, messages history retention relies on the server that hosts the chatroom and this is sometimes very limited, sometimes even disabled. And if that's the case, you only get messages when you have a _client_ online, as your server won't store messages when you don't have a client connected. Or something like that. And AFAIK, multiple clients with a MUC room opened will appear as multiple users sometimes. I'm not sure how it all works really, so take my words with a grain of salt. XMPP seems more like a pubsub system for system messages, like MQTT (: