Connect Spreed.ME iOS app with Spreed Video Call

Hi there,
Is it possible to connect Spreed.ME iOS app with the nextcloud 11 official Spreed video call?

I tried setting up spreedbox pointed to my nextcloud installation my.server.nextcloud/index.php/apps/spreed/ but that does not work. It just says ‘connecting’ all the time after it added a certificate.

It also did not prompt me for my username and password.

I really want to get this working!

The Spreed.ME iOS app can connect to the Spreed.ME Nextcloud app or directly to a Spreed WebRTC server.