Section 2: Deploying IP Telephony

175

Traffic engineering

177

Introduction

177

Design inputs

178

Topology

178

Endpoint specifications

180

Endpoint traffic usage

180

Call usage rates

183

Communities of interest

183

Expanded COI matrices

191

COIs for multiple-site networks

197

Resource sizing

198

Overview

198

Signaling resources

199

Media processing and TDM resources

200

Processing occupancy

211

SIP traffic engineering

213

IP bandwidth and Call Admission Control

216

Physical resource placement

224

Final checks and adjustments

224

Avaya Distributed Office

225

Security

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

227

Your security policy

227

Avaya Communication

229

Manager and Servers

LAN isolation configurations

233

Virus and worm protection

236

IP Telephony circuit pack security

238

TN2312BP IP Server Interface (IPSI)

238

TN2302AP and TN2602AP Media Processors

239

TN799DP Control LAN (C-LAN)

240

Toll fraud

240

Avaya’s security design

241

Hacking methods

241

Your toll fraud responsibilities

242

Toll fraud indemnification

242

Additional toll fraud resources

242

6 Avaya Application Solutions IP Telephony Deployment Guide

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