Cisco WS-X4604-GWY - VoIP Gateway Especificações descarregar pdf (Página 29)

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Cisco IP Telephony Network Design Guide

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Chapter 1 Introduction

Multisite IP WAN with Distributed Call Processing

The model for independent multiple sites has the following design characteristics:

• Cisco CallManager or Cisco CallManager cluster at each site to provide

scalable call control.

• Maximum of 10,000 IP phones per cluster.

• No limit to number of clusters.

• Use of PSTN for networking multiple sites and for all external calls.

• DSP resources for conferencing at each site.

• Voice message or unified messaging components at each site.

• Voice compression not required.

Multisite IP WAN with Distributed Call Processing

Figure 1-4 illustrates the model for multiple sites with distributed call processing.

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