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The Coming of True Convergence: Why Service Providers Can Finally Turn Out the Lights on the Old Public Switched Telephone Network (PSTN)

Glossary

API
application programming interface

ATM
asynchronous transfer mode

CALEA
Communications Assistance for Law Enforcement Act

CLASS
custom local-area signaling services

CO
central office

DSL
digital subscriber line

DSLAM
digital subscriber line access multiplexer

IAD
integrated access device

IETF
Internet Engineering Task Force

ILEC
incumbent local-exchange carrier

IP
Internet protocol

IPDC
Internet protocol device control

ISDN
integrated services digital network

ISUP
integrated services digital network user part

ITU
International Telecommunications Union

IVR
interactive voice response

MCU
multipoint control units

MEGACO
media gateway controller

MGCP
media gateway control protocol

NEBS
network equipment building standards

PBX
private branch exchange

PC
personal computer

PDA
personal digital assistant

POTS
plain old telephone service

PSTN
public switched telephone network

SCE
service creation environment

SCGP
simple gateway control protocol

SIP
session initiation protocol

SS7
signaling system 7

TCAP
transactional capabilities application part

TDM
time division multiplexing

VoDSL
voice over digital subscriber line

VoIP
voice over Internet protocol

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