International standard for multimedia communication ( real-time voice, video, and data communication) over packet-switched networks includes the standards H.323, H.225.0, H.245, the H.450-series documents, and the H.460-series. T.120 for data collaboration and file transfer. Ability to utilize network services for address resolution, including ENUM, LDAP, and DNS an provide various supplementary services Call transfer , … Continue reading H 323