RingCentral app super admins can join any public or private teams and become an admin of that team.
Joining a team as a super admin
1. Navigate to Contacts via the left-hand navigation bar.
2. Click the Public teams or Private teams tab on the left pane.
3. Hover over the team name that you want to join and click the Join team icon at the far right.
Note: For teams with less than 50 members, an @team notification will be generated once a super admin joins the team. This will alert all team members that the admin has joined. This feature is not available on teams with more than 50 members.