H.323 is a multimedia communications standard that defines the protocols and procedures for real-time, interactive audio and video communications over packet-switched networks. It was developed by the International Telecommunication Union (ITU) as a way to provide interoperability between different multimedia conferencing systems.
H.323 is based on the ITU-T H.320 standard, which defines the basic requirements for multimedia conferencing. H.323 adds support for a wider range of audio and video codecs, as well as features such as call control, encryption, and bandwidth management. H.323 has been widely adopted by businesses and organizations for video conferencing, distance learning, and other multimedia applications.
