Interum Group Inc. has filed a Central District of California suit against Zoom Video Communications (2:24-cv-05397), targeting the provision of Zoom Meetings and Zoom Webinars and related products incorporating them, including Zoom One and Zoom Workplace. The sole asserted patent generally relates to providing “video classroom presentation services”, including real time video and audio streams for multiple participants, where a particular stream is selected for display to the participants based on having a higher volume or when a presenter selects it.