Nortel-networks SRG 50 NN43001-307 Manual de usuario Pagina 189

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Emergency Services configuration
Contents
This section contains the following topics:
"Overview" (page 189)
"Emergency Services Access" (page 190)
"Emergency Services for Virtual Office" (page 200)
"On-Site Notification" (page 201)
"Configuring the NRS for ESA SPN" (page 201)
"Testing the ESDN number" (page 202)
"Configuring ESA using Element Manager" (page 202)
"Emergency Service using Special Numbers (SPN)" (page 202)
Overview
Support for access to emergency services by branch users in Normal Mode
is configured at the main office.
The key difference between the main office user and the branch user is the
route selected for the emergency call. An emergency call must be handed
off to the PSTN over a trunk at the central office that is geographically
closest to the caller—this means that there is normally an emergency trunk
in the main office, and one in each of the branch offices. An emergency call
originating from an SRG IP Phone must route from the main office Call
Server to the SRG so that the call can be sent on the SRG PSTN Trunks.
In Normal Mode, an IP Phone must have a Virtual Tr unk available and
configured between the main office and branch office in order to complete
an emergency services call.
ATTENTION
Do not route ESA calls to a node that has no direct ESA trunks.
Nortel Communication Server 1000
Main Office Configuration Guide for SRG 50
NN43001-307 02.02 Standard
Release 5.0 3 December 2007
Copyright © 2005-2007, Nortel Networks
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