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Glossary
ViewStation User Guide 224 www.polycom.com
LMN
LAN Local Area Network. A communications
network that serves users within a confined
geographical area. It is made up of servers,
workstations, a network operating system,
and a communications link.
MCU Multi-Point Conferencing Unit or Multi
Control Unit. Hardware at a central site in a
videoconferencing network that allows 3 or
more videoconferencing systems to
participate in an interactive multi-way
conference.
Multicast Multicast is a one-to-many transmission that
implies sending to several designated
recipients, whereas broadcast implies
sending to everyone connected to the
network.
Near End Your end site or local the end site of the
videoconference.
NT1 Network Termination type 1. The device that
converts the ISDN BRI "U" interface from the
telecommunications service provider to the
“S/T” interface used by ISDN products and
systems.