Unbalanced
Microphone
An unbalanced microphone uses a cable that is not especially built to
reduce interference when the cable is long. As a result, these unbalanced
line devices must have shorter cables to avoid audio disruptions.
Unicast Streaming Unicast streaming sends a separate stream of a videoconference to each
viewer. This is the default method of streaming in Scopia
®
Desktop server.
To save bandwidth, consider multicast streaming.
URI URI is an address format used to locate a device on a network, where the
address consists of the endpoint's name or number, followed by the domain
name of the server to which the endpoint is registered. For
example,<endpoint name>@<server_domain_name>. When dialing URI
between organizations, the server might often be the Avaya Scopia
®
PathFinder server of the organization.
URI Dialing
Accessing a device via its URI on page 214.
User profile A user profile is a set of capabilities or parameter values which can be
assigned to a user. This includes available meeting types (services),
access to Scopia
®
Desktop and Scopia
®
Mobile functionality, and allowed
bandwidth for calls.
VFU
See Video Fast Update (VFU) on page 214.
VGA VGA defines a video resolution of 640 x 480 pixels.
Video Fast Update
(VFU)
Video Fast Update (VFU) is a request for a refreshed video frame, sent
when the received video is corrupted by packet loss. In response to a VFU
request, the broadcasting endpoint sends a new intra-frame to serve as the
baseline for the ongoing video stream.
Video Layout
A video layout is the arrangement of participant images as they appear on
the monitor in a videoconference. If the meeting includes a presentation, a
layout can also refer to the arrangement of the presentation image together
with the meeting participants.
Video Resolution
See Resolution on page 210.
Video Switching See Switched video on page 213.
Videoconference A videoconference is a meeting of more than two participants with audio
and video using endpoints. Professional videoconferencing systems can
handle many participants in single meetings, and multiple simultaneous
meetings, with a wide interoperability score to enable a wide variety of
endpoints to join the same videoconference. Typically you can also share
PC content, like presentations, to other participants.
Virtual Room
A virtual room in Scopia
®
Desktop and Scopia
®
Mobile offers a virtual
meeting place for instant or scheduled videoconferences. An administrator
can assign a virtual room to each member of the organization. Users can
Glossary
214 Avaya Scopia
®
XT Series Deployment Guide April 2015
Comments? infodev@avaya.com
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