From the course: Analyzing VoIP Traffic with Wireshark
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H.323 family - Wireshark Tutorial
From the course: Analyzing VoIP Traffic with Wireshark
H.323 family
- [Instructor] H.323 Signaling is an ITU-T recommendation for audio and video communication across an IP network. H.323 acts as a wrapper for media control and includes H.225, H.245, which are both protocols that have a specific role in the call setup process. An H.323 network is made of several components, such as end points or terminals, a gateway, and a a multipoint control unit. This is used to bridge videoconferencing calls, and it includes a multipoint controller for call signaling, and a multipoint processor to mix, encode, and switch streams. Then there's the gatekeeper and a back-end service which holds information about terminals, configuration, and billing. The gatekeepers are very useful as they serve as a bridge between the H.323 network and the outside world. The gatekeepers provide address resolution and bandwidth control. An H.225 signal establishes communications between two hosts, which is initiated either using a TCP or UDP connection with an H.225 signal. This…
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