Nortel Networks NN43001-314 User Manual
Page 315
315
Emergency Services configuration
Contents
This section contains information on the following topics:
"Emergency Services Access (ESA)" (page 316)
"Routing ESA calls" (page 316)
"Emergency call routing" (page 316)
"PSTN routing: Enhanced 911 versus Basic 911" (page 316)
"Configuring ESA for the Branch Office" (page 317)
"Reregistering to minimally configured branch" (page 318)
"Element Manager ESA configuration" (page 326)
"Emergency Service using Special Numbers (SPN)" (page 327)
"CLID verification (CLIDVER)" (page 328)
Overview
For MG 1000B applications, Nortel recommends two alternative general
methods to specify which digit string results in a call to emergency services:
•
Use the Emergency Services Access (ESA) feature. This is the
preferred method in North America, the Caribbean and Latin America
(CALA), and in those countries that are members of the European
Union (EU). ESA provides specific features and capabilities required by
legislation in these jurisdictions.
•
Use of a special dialing sequence, such as a Special Number (SPN) in
the Network Alternate Route Selection (NARS) data block. This method
is also used where ESA is available, but the ESDN at the main office
does not match the ESDN at the Branch Office.
Nortel Communication Server 1000
Branch Office Installation and Commissioning
NN43001-314
01.02
Standard
Release 5.0
20 June 2007
Copyright © 2007, Nortel Networks
.