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H.323 VOIP

H.323 only no SIP stuff here

QuestionAnswer
H. 323 Suite of Protocols establishing and managing multimedia services on a packet switched network
H.225 VOIP and Video Session Layer protocol responsible for call setup- includes call set up, termination and requesting addition bandwidth and node status(H.323 subprotocol)
H.245 Session laye protocol responsible for controlling a session that already exists between two nodes. For example ensuring same format of data is used.(H.323 subprotocol)
H.323 Gatekeeper optional nerve center in a h.323 network does things like billing,authorize and authenticate terminals and gatways, manage bandwidth, oversee call routing and accounting
H.323 Gateway Translates between signalling and SS7 and PSTN
H.323 Terminal H323. telephone, visual
H.323 Zone A collection of H.323 terminals, gateways and MCU's managed by a gatekeeper
H.323 MCU Multipoint Control Unit. provides support for terminals and manages communications between them - also known as a video bridge
H.248/MEGACO A protocol used between media gateway controllers and media gateways. More modern than MGCP
MGCP Media Gateway Control Protocol used between media gateway controllers and media gateways
Created by: studymark2