P/N 480-0049-00-13
Glossary-1
GLOSSARY
A
Alarm. A brief message that appears on your screen
when the
Tenor DX
encounters a problem (i.e., failed
interface). Alarms can be viewed through CLI (see
Command Line Interface
) or a Telnet connection.
Auto Switching. If a network packet delay for an IP call
becomes unacceptable, the
Tenor DX
will automati-
cally switch the call to PSTN.
B
Border Element. Provides access into or out of an admin-
istrative domain. The
Tenor DX
has two types of Bor-
der Elements: Primary and Secondary.
Bypass Number. A telephone number that is automati-
cally sent to the PSTN, without going VoIP.
C
CAS. Channel Associated Signaling. A form of circuit
switched signaling.
CCS. Common Channel Signaling. A form of signaling
that uses the D channel as the signal channel.
CDR. Call Detail Recording. A string of data which con-
tains call information such as call date and time, call
length, calling party and called party.
CDR Server. The server (or workstation) responsible for
receiving and processing CDRs as they are generat-
ed.
CLI. See
Command Line Interface
.
Command Line Interface (CLI). A configuration system
you use to configure and monitor the
Tenor DX
unit
via telnet connection.
Configuration Mode. A CLI module which enables you
to configure all functions in the
Tenor DX
.
Console port. RS-232 connector is used for connection to
a PC’s serial port via DB-9 null modem cable.
CSU. Channel Service Unit. A component used to termi-
nate a digital circuit (i.e., T1 line) at a customer site.
D
Diagnostic Mode. A CLI module which provides a set of
utilities to perform diagnostic and testing procedures.
DSP. Digital Signal which provides the required signal
processing for the
Tenor DX
.
E
ESD. Electrostatic Discharge occurs as a result of im-
properly handled electrostatic components. An ESD
Antistatic Strap must be used to prevent ESD.
Ethernet. A Local Area Network (LAN) data network
design that connects devices like computers, printers,
and terminals. It transmits data over twisted pair or
coaxial cable at speeds of 10 to 100 Mbps.
Ethernet port. A port on the Tenor DX which provides
RJ-45 jacks for connection to a 10/100 Ethernet LAN
switch or hub via RJ-45 cable.
Extranet. Communications with a source outside your
company.
G
Gatekeeper. See
H.323 Gatekeeper.
Gateway. A device (i.e., Tenor CMS) which connects IP-
based networks and circuit-switched networks.
Ground Strap. A ground connection on the front of the
chassis is provided for ESD protection.
H
H.323. A protocol standard for sending multimedia com-
munications (i.e., voice/data) simultaneously over
packet-based networks, such as IP.
H.323 Gatekeeper. An H.323 built in gatekeeper which
performs IP call routing functions such as call control
and administrative services to another
Tenor DX
unit
or another H.323 endpoint.
Hop-off PBX Call. A toll call which is “leaked out” of a
PBX into a private network in order to eliminate toll
charges.
I
Internet. A packet based network which transports voice/
video/data over TCP/IP.
Intranet communication. Communication within the
