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 feature requires the following packages to operate:
Description
The emergency stand-alone (ESA) feature allows call processing to continue
a Remote Switching Center-SONET (RSC-S). The RSC-C continues if loss
of communication with the host occurs.
When the ESA process, the RSC-S requires routing and translation data to
continue processing calls. The host normally stores this data. Data updates
and downloads to the RSC-S occur at less busy hours each day.
The ESA task software controls translation facilities for the RSC-S ESA
mode call operations. The ESA central controller (CC) is a software module
for ESA task software. The ESA CC emulates 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 performs translations. For these
translations, the ESA CC uses a subset of translation data from the DMS
CC. This subset is a snapshot of DMS CC data that ESA call processing
requires.
The RSC-S ESA lines feature package is available for RSC-S applications
supporting lines only. To activate ESA for the RSC-S, the RCO2 must
contain software that provides ESA. The ESA lines feature package requires
the following tables for implementation: RCCINV, ESAPXLA, and
DMS-100 Family XPM International Translations Reference Manual XPM12 and up
4-105 Datafilling ESA lines and trunks on RSC-S UK / Europe
NTX000AA Bilge
NTX001AA Common Basic
NTX145AA Remote Switching Center
NTX270AA New Peripheral Maintenance Package
NTX901AA Local Features I

ESA lines and trunks

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