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Emergency Services configuration
Contents
This section contains information on the following topics:
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Emergency Services Access (ESA). . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Configuring the NRS for ESA SPN . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Testing the ESDN number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Configuring ESA using Element Manager . . . . . . . . . . . . . . . . . . . . . . 239
Emergency Service using Special Numbers (SPN). . . . . . . . . . . . . . . . 239
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.
Main Office Configuration for Survivable Remote Gateway 50 Configuration Guide
