Lucent Technologies Comcode 108678723 manual Escc

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000
Glossary and Abbreviations
	GL-3
ESCC
Enhanced single-carrier cabinet
ESI
End System Identifier

E

FNPA

Foreign Number Plan Area—in the North American Numbering Plan, any area code other than the caller’s own area code. An FNPA ARS call specifies a 10-digit address (optionally preceded by a ‘1’ toll prefix), the first three digits of which specify the area code, or number plan area. In some locations (typically where area codes are overlaid), it is necessary to dial the NPA even for a local call.

H

HNPA

Home Number Plan Area—in the North American Numbering Plan, the caller’s own area code. An HNPA ARS call is usually a 7-digit call (perhaps preceded by a ‘1’ toll prefix) for which the local area code is implied. In some locations, HNPAs are overlaid (2 or more used in the same location), requiring 10-digit dialing; in effect, there is no HNPA for such locations.

HO-DSP

High-Order Domain Specific Part

I

ICSU

Integrated Channel Service Unit

ILMI

Integrated Layer Management Interface

INS

Lucent’s Data Network Systems

ISDN

Integrated Services Digital Network

L

LAN

Local area network