Concept of Hybrid-Flexible Lecture using H.323 Protocol of Remote Conference System

This paper explores the innovative concept of Hybrid-Flexible (HyFlex) lectures, utilizing the H.323 protocol in remote conferencing systems, a timely response to the evolving educational landscape accelerated by the global pandemic. Yamaguchi University's multi-campus model adopted H.264 codec teleconferencing systems to facilitate remote lectures and conferences. However, the onset of COVID-19 and the subsequent surge in online learning necessitated a more versatile approach. This study delves into integrating on-premises conferencing systems with cloud-based services like Webex, showcasing a novel solution that marries traditional and online teaching methods. The paper details the technological underpinnings, particularly the H.264 codec and H.323 protocol, which are essential for high-quality, efficient multimedia communication. It then illustrates the practical application of these technologies in creating a HyFlex environment, demonstrating their effectiveness through a series of feasibility tests conducted at Yamaguchi University. These tests reveal how the Hybrid-Flexible model can overcome typical challenges such as cost, technology infrastructure, and student engagement, providing an equitable learning experience for remote and in-person participants. Conclusively, the paper presents an insightful case study of adapting to change in the educational sector, offering a scalable and efficient model for universities worldwide. It underscores the potential of leveraging existing technology in restructuring to bridge the gap between traditional and digital learning, heralding a new era in education that is more inclusive, flexible, and resilient to unforeseen challenges.