MGC Manager User’s Guide - VoicePlus Edition

Abbreviation/

Explanation

Term

 

 

 

H.320

ITU-T standard that defines how the H-series video

 

conferencing recommendations work together.

 

 

H.323

ITU-T standard for audio, video and data communications

 

across IP-based (LAN) networks, including the Internet.

 

 

IMUX or Inverse

A feature that allows high speed serial data streams to be

Multiplexing

divided into multiple of 56 or 64 Kbps for transmission over

 

public digital switched networks (PSTN). At the remote end,

 

all the channels are phase-aligned and synchronized to

 

recreate the original data stream.

 

 

IP

Internet Protocol. The working protocol that forms the basis of

 

the internet.

 

 

ISDN

Integrated Services Digital Network. A set of protocol and

 

interface standards (voice, video and data) that comprise a

 

telephone network. There are two types of ISDN lines: BRI

 

and PRI.

 

 

ITU-T Standard

International Telecommunications Union, Telecommunication

 

Standardization Sector (formerly CCITT). The international

 

organization that produces official standards for

 

telecommunications.

 

 

LAN

Local Area Network. A group of computers and other devices

 

linked via a network’s operating system.

 

 

LDAP

Lightweight Directory Access Protocol.

 

 

Leased Line

A dedicated PRI line supplied by the telephone company. See

 

also PRI line.

 

 

Line Rate

The amount of bandwidth used by a communication device,

 

measured in Kbps (kilobytes per second).

 

 

MCU

Multipoint Control Unit. Device which allows more than two

 

sites to be connected in a video or audio conference.

 

 

MPI

Multi Protocol Interface. Supports connection to endpoints

 

using communication protocols such as V.35 RS-449 and RS-

 

530 over a serial connection.

 

 

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