**4. Enhancements by XR and naturalness**

Traditionally, the gold standard for telepresence solutions has been a face-toface meeting. While mimicking physical encounters over network is technically very challenging, the goal for telepresence solutions has even been raised to exceed the possibilities of physical meetings, referred also to as "beyond being there" [32] and "beyond being aware" [33]. Bill Buxton et al. referred to additional functionalities enhancing face-to-face collaboration as 'groupware' [4]. Correspondingly, also our 3D telepresence solution can and needs to be enhanced with additional functionalities. In our case, many of them are based on XR functionalities, which are discussed in the following.
