Avaya Scopia Installing Manual page 48

Glossary
Full HD
Full screen Video
Layout
Gatekeeper
Gateway
GLAN
H.225
H.235
H.239
H.243
H.245
H.261
H.263
Installing the Avaya Scopia
48
average human eye can register up to 50 frames per second. The higher
the frame rate, the smoother the video.
Full HD, or Full High Definition, also known as 1080p, describes a video
resolution of 1920 x 1080 pixels.
The full screen view shows one video image. Typically, it displays the
remote presentation, or, if there is no presentation, it displays the other
meeting participant(s).
A gatekeeper routes audio and video H.323 calls by resolving dial strings
(H.323 alias or URI) into the IP address of an endpoint, and handles the
initial connection of calls. Gatekeepers also implement the dial plan of an
organization by routing H.323 calls depending on their dial prefixes.
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Scopia Management includes a built-in Avaya Scopia
ECS is a standalone gatekeeper.
A gateway is a component in a video solution which routes information
between two subnets or acts as a translator between different protocols.
For example, a gateway can route data between the headquarters and a
partner site, or between two protocols like the TIP Gateway, or the Scopia
100 Gateway.
GLAN, or gigabit LAN, is the name of the network port on the XT Series. It
is used on the XT Series to identify a 10/100/1000MBit ethernet port.
H.225 is part of the set of H.323 protocols. It defines the messages and
procedures used by gatekeepers to set up calls.
H.235 is the protocol used to authenticate trusted H.323 endpoints and
encrypt the media stream during meetings.
H.239 is a widespread protocol used with H.323 endpoints, to define the
additional media channel for data sharing (like presentations) alongside the
videoconference, and ensures only one presenter at a time.
H.243 is the protocol used with H.323 endpoints enabling them to remotely
manage a videoconference.
H.245 is the protocol used to negotiate call parameters between endpoints,
and can control a remote endpoint from your local endpoint. It is part of the
H.323 set of protocols.
H.261 is an older protocol used to compress CIF and QCIF video
resolutions. This protocol is not supported by the XT Series.
H.263 is an older a protocol used to compress video. It is an enhancement
to the H.261 protocol.
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Streaming and Recording Server
Comments on this document? infodev@avaya.com
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Gatekeeper, while
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June 2015