Esa Lines And Trunks - Nortel DMS-100 Series Reference Manual

Functional group
BAS00012
Feature package
NTX149AA ESA lines and trunks
Release applicability
XPM05 and later versions
Requirements
The ESA lines and trunks require the following feature packages to operate:
Description
The emergency stand-alone (ESA) feature allows call processing to continue
a Remote Switching Center-SONET (RSC-S) when a loss of communication
with the host occurs.
During ESA, the RSC-S requires routing and translation data that the host
normally stores to continue to process calls. The user or the system can
update and download data to the RSC-S at less busy hours every day.
The ESA task software controls the translation facilities for the RSC-S ESA
mode call operations. The ESA task software has the ESA central controller
(CC). The CC is a software module. The ESA CC operates like the DMS
CC while the RSC-S is in ESA.
When the host controls the RSC-S, the DMS CC performs translations.
When the RSC-S is in ESA, the ESA CC uses a subset of translation data
from the DMS CC to perform translations. This subset is a snapshot of
DMS CC data required for ESA call processing.
During ESA, automatic number identification (ANI) can route over
emergency service trunks from an RSC-S to an E911 tandem. While in
DMS-100 Family XPM International Translations Reference Manual XPM12 and up
3-107 Datafilling ESA lines and trunks on RSC-S International
NTX000AA Bilge
NTX001AA Common Basic
NTX145AA Remote Switching Center
NTX270AA New Peripheral Maintenance Package
NTX901AA Local Features I
Note: Feature packages NTX150AA and NTXP92AA are removed
from this list as requirement packages for feature package NTX149AA.

ESA lines and trunks

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