Avaya BCM Emergency Services Access (ESA) User Manual download pdf (Page 9)

Technical Solution Guide for BCM ESA v2.2 November 2006

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8 Nortel Confidential

Page 20

NORTEL CONFIDENTIAL Provided under a Non Disclosure Agreement

Emergency Services Access Model

User dials

911

Central Office

(Local Telco)

Location

database (ALI)

Any station

Calling

Number

(ANI)

911 call

Mer idi anMer idi anMer idi an

June 09 10:49 A

CFWD

Public Safety

Answering Point

(PSAP)

911 Agent position

Voice

call

Location

information

(from ALI)

Look-

Callers

Emergency

Service

Identification

(CESID)

Figure 1: BCM ESA Reference Topology

As can be seen, the mapping of the ANI by the PBX and Telco to provide a CESID to the PSAP can be provided

by either:

• PBX provides appropriate calling number that has a corresponding PSAP ALI entry and the Telco passes

this calling number through

• Central office can provide mapping between the calling number provided by the PBX to an appropriate

CESID that has an ALI entry

1.3 ESA on BCM

Nortel’s Business Communication Manager (BCM) works within the overall ESA framework to ensure

transparency to the end-user within the working environment of a Private Branch Exchange (PBX). Specifically,

the feature rich environment of BCM provides an adaptive foundation for ESA:

• flexible emergency dialing codes

• line identification (OLI)

• on-site notification

The BCM’s business model starts at the Key System level (< 10 extensions), and grows well into the traditional

PBX market (< 100 extensions). This tenfold difference in user base is often translated into significantly different

CAPEX and OPEX practices.

This functionality is provided through Nortel’s agreement with its Developer Partner Resource Software

International (RSI)

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