You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !firstname.lastname@example.org
Using XMPP in combination with other legacy networks.
I’m surprised to hear you’re having trouble with inbound calls not ringing. Do you have trouble with other inbound XMPP messages?
Not that I’m aware of