Lucent Technologies Comcode 108678723 manual Numerics, Service, ATM network duplication

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000
Glossary and Abbreviations
	GL-1

Glossary and Abbreviations

GL

Numerics

800service

A service in the United States that allows incoming calls from certain areas to an assigned number for a flat-rate charge based on usage

AAR

Automatic Alternate Routing—digit analysis performed in support of the private network numbering plan(s).

AC

Access Concentrator

ACD

Automatic Call Distribution

AFI

Address Format Identifier

AIS

Alarm Indication (or Inhibit) Signal—inserted when a network element receives a “bad” signal, and forwarded downstream to tell the receivers what happened.

ARS

Automatic Route Selection—digit analysis performed in support of the public network numbering plan(s)

ATM

Asynchronous Transfer Mode

ATM network duplication

ATM network duplication is an ATM-PNC configuration that allows DEFINITY ECS’s without duplicated SPEs to be supported with duplicated EPN connectivity to other points on an ATM network. These points can be on separate ATM switches, the same ATM switch, or directly connected to an ATM-WAN. There is no difference in performance between ATM network duplication and critical reliability.