Electronic Switching Systems



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1-ESS

x-ESS series of "Electronic Switching Systems" from AT&T/Lucent

3G

Third Generation (Mobile Network)

3GPP

Third-Generation Partnership Project

3WC

Three Way calling

4GL

Fourth-Generation Language

800 or 888

Freephone

802.x

Series of LAN standards developed by IEEE

911

Emergency telephone number in North America

A

AAV

Alternative Access Vendor

ABR

Available Bit Rate

AC

Access Control, or Alternating Current, or Authentication Center (also AUC)

ACD

Automatic Call Distributor

ACE

Authentication Encryption

ACEK

Authentication Encryption Key

ACK

Acknowledgement

ACP

Access Control Point

ACRE

Authorization and Call Routing Equipment

ADM

Add-Drop Multiplexer (SDH Element)

ADPCM

Adaptive Differential Pulse Code Modulation

ADSL

Asymmetric Digital Subscriber Line

AGRAS

Air-Ground Radiotelephone Automated Service

AIOD

Automatic Identification of Outward Dialed calls

AIN

Advanced Intelligent Network (ANSI IN Standard)

A-key

Authentication key

ALI

Automatic Location Information

AM

Amplitude Modulation

AMPS

Advanced Mobile Phone System

ANI

Automatic Number Identification

ANS

Advanced Network Services

ANSI

American National Standards Institute

ANSI-41

ANSI standard for mobile management (ANSI/TIA/EIA-41)

ANT

ADSL Network Terminator

AOA

Angle of Arrival

AOL

America On Line (ISP)

API

Application Programming Interface

APPC

Advanced Program-to Program Communications (IBM SNA)

APPN

Advanced Peer-to-Peer Network (IBM SNA)

ARCnet

Attached Resource Computer Network (Datapoint)

ARDIS

Advanced Radio Data Information Service

ARP

Address Resolution Protocol

ARPA

Advanced Research Projects Agency

ARPU

Average Revenue Per User

ARPANET

ARPA Network

ARQ

Automatic Repeat Request

ARS

Automatic Route Selection

ASCII

American Standard Code for Information Interchange

ASIC

Application-Specific Integrated Circuit

ASN.1

Abstract Syntax Notation 1 (ISO)

ASP

Application Service Provider

ASR

Automatic Send Receive, Automatic Speech Recognition

AT&T

American Telephone & Telegraph

ATIS

Alliance for Telecommunications Industry Solutions (formerly ECSA)

ATM

Asynchronous Transfer Mode, Automatic Teller Machine

ATSC

Advanced Television Systems Committee

AUI

Attachment Unit Interface

AWG

American Wire Gauge

AXE 10

Series of electronic telephone exchanges from L.M. Ericsson

B

B2B

Business-to-Business

B2C

Business-to-Consumer

B8ZS

Binary Eight Zero Substitution

BACP

Bandwidth Allocation Control Protocol

BBS

Bulletin Board System

Bellcore

Bell Communications Research, Inc. (Now Telcordia)

BEP

Back-End Processor

BER

Bit Error Rate

BERT

Bit Error Rate Test (or Tester)

BIOS

Basic Input-Output System

B-ISDN

Broadband ISDN

BOC

Bell Operating Company (USA)

BONDING

Bandwidth On Demand Interoperability Group

bps

bits per second

BRI

Basic Rate Interface (ISDN)

BS

Base Station

BSC

Base Station Controller, or Binary Synchronous Communications (IBM)

BSS

Base Station Sub-system (GSM)

BSS

Business Support Systems

BTS

Base Transceiver Station

C

CAD

Computer-Aided Design

CAM

Computer-Aided Manufacturing

CAMEL

Customized Applications for Mobile-network Enhanced Logic (GSM/ETSI)

CAN

Campus Area Network

CANARIE

Canadian Network for Advancement of Research, Industry, Education

CAP

Competitive Access Provider

CAPS

Common ISDN API Service

CARS

Cable Antenna Relay Services

CASE

Computer-Aided Software Engineering

CATV

Cable Television or Community Antenna Television

CAVE

Cellular Authentication and Voice Encryption

CB

Citizens Band

CBR

Constant Bit Rate

CCC

Clear Channel Capability

CCCH

Common Control Channel

CCD

Charge Coupled Device

CCIR

Comité Consultatif International des Radiocommunications (now ITU-R)

CCITT

Comité Consultatif International des Télégraphes et Téléphones (now ITU-T)

CCR

Customer Controlled Reconfiguration

CCS

Common Channel Signaling

CCSS6

Common Channel Signaling System # 6

CD-R

Compact Disk-Recordable

CD-ROM

Compact Disk-Read-Only Memory

CDMA

Code Division Multiple Access

CDO

Community Dial Office

CDPD

Cellular Digital Packet Data

CDR

Call Detail Record

CENTREX

Central Office Exchange (PBX-like Service)

CEPT

Conference of European Posts and Telecommunications

CERN

Centre Européen de Recherche Nucléaire

CGSA

Cellular Geographic Service Areas

CIR

Committed Information Rate

CLASS

Custom Local Area Signaling Services

CLEC

Competitive Local Exchange Carrier

CLI

Calling Line Identification

CMA

Communications Management Association

CMIP

Common Management Information Protocol (ISO)

CMIS

Common Management Information Services (ISO)

CMISE

Common Management Information Service Element (ISO)

CMOS

Complementary Metal Oxide Semiconductors

CMRS

Commercial Mobile Radio Service

CNET

Centre National d'Études en Télécommunications (France Telecom)

CNI

Calling Number Identification

CO

Central Office

Codec

Coder/decoder

CON

Concentrator

COO

Cell of Origin

CORBA

Common Object Request Broker Architecture (OMG)

COT

Central Office Terminal

cPCI

Compact Peripheral Component Interconnect

CPE

Customer Premises Equipment

CPN

Cisco Powered Network (Ingredient Band)

CPP

Calling Party Pay

CPS

Cycles per second (Hertz)

CPU

Central Processing Unit

CRC

Cyclic Redundancy Check

CRM

Customer Relationship Management

CSA

Carrier Servicing Area

CSM

Communications Services Management

CSMA/CD

Carrier Sense Multiple Access with Collision Detection

CSR

Customer Service Representative

CSU

Channel Service Unit

CT

Cordless Telecommunications

CTI

Computer Telephony Integration

CTIA

Cellular Telecommunications Industry Association

Cu

Copper Local Loop

CUG

Closed User Groups

D

D-AMPS

Digital Advanced Mobile Phone Service

DA

Destination Address

DAP

Demand Access Protocol

DARPA

Defense Advanced Research Projects Agency

DAT

Digital Audio Tape

dB

deciBel

DBMS

Database Management System

DBS

Direct Broadcast Satellite

DCE

Data Communications Equipment, or Distributed Computing Environment

DCU

Distribution and Control Unit

DDD

Direct Distance Dialing

DDS

Dataphone Digital Service

DECT

Digital Enhanced (formerly, European) Cordless Telecommunication

DES

Data Encryption Standard

DLCS

Digital Loop Carrier System

DLL

Dynamic Link Library

DLU

Digital Line Unit

DM

Distributed Management

DME

Distributed Management Environment (OSF)

DMI

Distributed Management Interface

DMS

Digital Multiplex Switch (Nortel Networks Switching Product Family DMS 100, 200, …)

DMT

Discrete Multitone

DMTF

Desktop Management Task Force

DNA

Digital Network Architecture (Digital Equipment Corporation)

DNS

Domain Name Service DoD Department of Defense (USA)

DOS

Disk Operating System

DOV

Data Over Voice

DPCM

Differential Pulse Code Modulator

DS

Digital Service, Digital Signal

DS-0

Digital Signal, Level 0 (64 kbps)

DS-1

Digital Signal, Level 1 (1.544 Mbps)

DS-1C

Digital Signal, Level 1C (3.152 Mbps)

DS-2

Digital Signal, Level 2 (6.312 Mbps)

DS-3

Digital Signal, Level 3 (44.736 Mbps)

DS-4

Digital Signal, Level 4 (274.176 Mbps)

DSI

Digital Speech Interpolation

DSL

Digital Subscriber Line

DSP

Digital Signal Processor

DSS

Decision Support System

DSU

Digital Service Unit

DTAM

Document Transfer and Manipulation (ISO)

DTE

Data Terminal Equipment

DTMF

Dual-Tone MultiFrequency

DTU

Data Transfer Unit

DTV

Digital Television

DVB

Digital Video Broadcasting

DWDM

Dense Wavelength Division Multiplexing

DXI

Data Exchange Interface

E

E2E

End-to-End

E-911

Enhanced emergency telephone number (USA)

E&M

Ear and Mouth, or recEive and transMit (signaling)

E-TDMA

Expanded Time Division Multiple Access

EAI

Enterprise Application Integration

EBCDIC

Extended Binary Coded Decimal Interchange Code (IBM)

EC

European Community

ECMA

European Community Manufacturers Association

ECSA

Exchange Carrier Standards Association (now ATIS)

EDGE

Enhanced Data for GSM Evolution

EDI

Electronic Data Interchange

EEROM

Electronically Erasable Read-Only Memory

EF&I

Engineering, Furnishing and Installation

EFT

Electronic Funds Transfer

EHF

Extremely High Frequency (more than 30 GHz)

EIA

Electronic Industries Association

EIR

Equipment Identity Register

EISA

Extended Industry Standard Architecture

EMEA

Europe, Middle East & Africa (Business Region)

EML/EMS

Element Management Layer/ Element Management Service

EMS

Enhanced Messaging Services

ENS

Enhanced Network Services

EOT

End of Transmission

EPI

External Provisioning Interface

ERMES

European Radio Message System (standard for pagers)

ERP

Enterprise Resource Management

ESCON

Enterprise System Connection (IBM)

ESMR

Enhanced Specialized Mobile Radio

ETSI

European Telecommunications Standard Institute

EU

European Union



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