Glossary - William Mitchell

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26 Οκτ 2013 (πριν από 3 χρόνια και 10 μήνες)

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Glossary


10Base
-
T 10 Mbps Ethernet over twisted pair copper cable

100Base
-
T 100 Mbps Ethernet over twisted pair

copper cable

1000Base
-
T 1000 Mbps Ethernet over twisted

pair copper cable

10GBase
-
T Proposed 10Gbps over copper cable

4e Class 4 switch
from
Alcatel/Lucent

5e Class 5 switch
Alcatel/Lucent

ACD Automatic Call Distribution

ADPCM Adaptive Differential Pulse Code

Modulation

AMIS Audio Messaging Interchange

Specification

ANI Automatic Number Identification

ARPA Advanced Research Projects Agency

ASIC

Application Specific Integrated

Circuit

BRI Basic Rate Interface (2B +D)

DECT Digital Ehnanced Cordless Telecommunications

DiffServ Differentiated Services

DNS Domain Naming System

DSCP Differentiated Services Code Point

DSP Digital Signal Processor

CAT
5e Category 5e twisted pair cable

CDMA Code Division Multiple Access

CDR Call Detail Record

CERT Computer Emergency Readiness Team

CIF Common Intermediate Format

CLI Calling Line ID

CO Central Office of a telecommunications

operator

Codec Coder/DeCoder

CRM

Customer Relationship Management

CSMA/CD Carrier Sense Multiple

Access/Collision Detection

CSU Channel Service Unit

CTI Computer Telephony Integration

D4 A T
-
1 framing scheme

DES Data Encryption Standard

DHCP Dynamic Host Configuration

Protocol

DMS CO Swi
tches from Nortel Networks

DMZ De
-
Militarised Zone

DOS Denial of Service

DS
-
0 64 Kbps channel

DS
-
1 1.544 Mbps = T
-
1 = 24 x 64 Kbps channels

DS
-
3 44.736 Mbps = T
-
3 = 28 x T
-
1s = 672 x 64 Kbps channels

DSS/BLF Direct Station Select Busy Lamp

Field (Attendant

Console)

DTMF Dual Tone Multi Frequency

E
-
1 = 32 x 64kbps

E.164 The international public telecommunications

numbering plan

ECTF Enterprise Computer Telephony

Forum

ESF Extended Super Frame


a T
-
1 framing

scheme

FMC Fixed Mobile Convergence

FXO Foreign
Exchange Office

FXS Foreign Exchange Station

G.711 Pulse code modulation (PCM) of

voice frequencies

G.723.1 Dual rate speech coder for multimedia

communications transmitting at

5.3 and 6.3 kbit/s

G.729a Coding of speech at 8 Kbps using

Conjugate
-
Structure
Algebraic
-
Code
-

Excited Linear
-
Prediction (CS
-
ACELP)

G.729a

(annexe B) G.729a with silence suppression

Ground Start A way of signaling initiation of a call

from a PBX to the CO by briefly

grounding one side of a line

GSM Group System Mobile

H.100 ECTFs
standard CT bus implementation

with PCI

H.110 ECTFs standard CT bus implementation

with Compact PCI

H.225.0 Call signaling protocols and media

stream packetization for packet

based multimedia communication

systems

H.245 Control protocol for multimedia

comm
unication

H.248 ITU equivalent of IETF MEGACO

H.263 Video Coding Standard

H.264 Advanced Video Coding Standard

H.320 Narrow
-
band visual telephone systems

and terminal equipment

H.323 Packet
-
based multimedia communications

systems

H.324m Video Conferencing
standard for low bit
-
rate (mobile) connections

H.450 Generic functional protocol for the

support of supplementary ser
vices

HTTP HyperText Transfer Protocol

ICE
Interactive Connectivity Establishment (Assists with NAT traversal)

IEEE 802.1 Transparent Bridg
ing

IEEE 802.1d Spanning Tree Algorithm

IEEE 802.3 CSMA/CD (Ethernet)

IEEE 802.3ad Link Aggregation

IEEE 802.3ae 10 Gbps Ethernet

IEEE 802.3af Power over Ethernet

IEEE 802.11 a,b,g,n Wireless LAN standards

IEEE 802.11e QoS for WiFi

IEEE 802.16e Mobile Wima
x standard

IDS Intrusion Detection System

IM Instant Messaging

IP Internet Protocol

IPS Intrusion Protection System

IPSEC IP Security

IPT IP Telephony

ISDN Integrated Services Digital Network

ITU International Telecommunications Union

IVR Interactive Voice

Recognition

LCD Liquid Crystal Display

LDAP Lightweight Directory Access Protocol

LED Light Emitting Diode

Loop Start A way of signaling call initiation by

creating a loop across the two wires

of a telephone pair.

MAC Media Access Control (Ethernet)

MAC Moves Adds and Changes (Telephony)

MGCP Media Gateway Control Protocol

MEGACO Media Gateway Control, also know
n
as H.248 signaling protocol

MOS Mean Opinion Score

MPEG Motion Picture Experts Group

MPEG
-
4 Advanced Video Coding Standard

MPLS Multi
-
Protoc
ol Label Switching

NAC Network Access Control

NAP Network Access Protection

NAT Network Address Translation

NI2 Standard ISDN Signaling scheme

OC
-
1 51.840 Mbps

OC
-
3 155 Mbps

OC
-
12 622 Mbps

OC
-
48 2.4 Gbps

OUI Organizationally Unique Identifier

P.831
Subjective performance evaluation of

network echo cancellers

PABX Private Automatic Branch Exchange

PBX Private Branch Exchange

PCM Pulse Code Modulation

PRI Primary Rate Interface

Q.931 ISDN user
-
network interface layer 3

specification for basic call
control

QSig Q reference point Signaling

RED Random Early Detection

RSVP
-
TE Resource Reservation Protocol


Traffic Engineering

RTP Real
-
Time Transport Protocol

SBC Session Border Controller

SCTP Stream Control Transmission Protocol

SDH Synchronous Digita
l Hierarchy

(European Equivalent of SONET)

SDP Session Description Protocol

SILK Skype wideband codec (now an internet draft)

SIMPLE SIP for Instant Messaging and

Presence

SIP Session Initiation Protocol (RFC

2543)

SLA Service Level Agreement

SMDI Simplif
ied Message Desk Interface

SONET Synchronous Optical Network

SRTP Secure RTP

SS7 Signaling System number 7

STS Synchronous Transport Signal


STS
-
1/STM
-
1 51.840 Mbps

STS
-
3/STM
-
3 155.52 Mbps

STS
-
12/STM
-
12 622.08 Mbps

STS
-
48/STM
-
48 2.488 Gbps

STUN
Simple
Traversal of UDP through NATs

T
-
1 1.544 Mbps = DS
-
1 = 24 x 64 Kbps
channels

T
-
3 44.736 Mbps = DS
-
3 = 28 x T
-
1s =
672 x 64 Kbps channels

TAPI Telephony Application Programming

Interface,

TCO Total Cost of Ownership

TCP/IP Transmission Control

Protocol/Internetworking Protocol

TIA 568B Pin layouts for RJ45 plugs

TLS Transport Layer Security

TURN Traversal Using Relay NAT

UC Unified Communications

UDP User Datagram Protocol

UTP Unshielded Twisted Pair

URL Universal Resource Locator

VLAN Virtual L
AN

VoIP Voice over IP

VoiceXML Voice Extended Markup Language

VP8 Wideband Video codec acquired by Google (public domain)

VPIM Voice Profile for Internet Messaging

VPN Virtual Private Network

WAN Wide Area Network

WEP Wired Equivalent Privacy

WFQ Weighted
Fair Queuing

WIMAX Worldwide Interoperability for Microwave Access

WPA Wi
-
Fi Protected Access

WRED Weighted Random Early Detection

XMPP Extensible Messaging and Presence

Protocol