Specifications

148 Glossary
contraction of the words MODulator
DEModulator.
Music on Hold (MOH)
An XMU+ equipped with a Music On Hold
(MOH) line card can be set up to combine
music and messages to create an On Hold
environment for your callers.
See
Applying MOH Line Card Settings on
page 31.
Node
XMU building blocks consisting of a group of
commands or XMU settings that are used to
build XMU+ configurations.
See
About the XMU+ Announcement and
Call Processing System on page 3.
Partition
The XMU+ can be configured for single or
multi-partition mode. When
multi-partitioning is configured, each
partition acts as an individual XMU+ unit.
See Meeting System Requirements on
page 16.
Passive announcements
Passive announcements are those configured
to simply playout with a ring or control pulse
start then disconnect. DTMF detection is not
used during a passive announcement.
Port
A female connector on the XMU+ for
connecting the (male) connector of various
external devices.
Private Branch Exchange (PBX)
This is typically a private telephone network
used within an enterprise. Users of the PBX
share a certain number of outside lines for
making telephone calls external to the PBX.
Public Switched Telephone Network
(PSTN)
The public telephone system that operates
the normal phone system.
Start Signal
Certain types of PBX equipment provide a
start signal to the XMU+. This is used instead
of a conventional ring signal superimposed
on the audio pair.
T1
T1 is a North American high-speed,
dedicated “DS1” connection that is capable of
transferring digital signals at 1.554 Mbps
(mega-bits per second). The payload of a T1
connection is twenty-four (24) 64 Kbps “DS0”
voice channels.
Uniform Call Distribution (UCD)
The XMU+ can be configured for UCD
applications, which distributes all incoming
calls uniformly among a group of people.
See
About the XMU+ Announcement and
Call Processing System
on page 3.
Uninterruptible Power Supply (UPS)
The XMU+ can be connected to a UPS, which
will maintain the XMU+ for a limited time in
case of a power failure.
See
Power Requirements on page 17.