Nortel Networks Telephone NN10033-111 Uživatelský manuál stáhnout pdf (Strana 3)

Nortel Networks Confidential

Overview

How is this chapter organized

This chapter provides a high-level overview of the interworking

between the Multimedia Communications Platform (MCP) and the

following systems:

• Primary Rate Interface (PRI)-enabled switches

• SIP-T-based switches

• third-party gateways

• traditional phones

• third-party voicemail servers

Interworking with PRI-enabled switches

The MCP uses the SIP PRI Gateway to perform interworking with

PRI-enabled switches (switches with PRI interfaces).

For more detailed information about the SIP PRI Gateway, please refer

to the MCP SIP PRI Gateway Basics document.

Functional description

The SIP PRI Gateway is a signaling and media gateway that

interconnects a SIP-based Voice over IP (VoIP) domain and a system

that uses ISDN Primary Rate Interface (PRI/Q.931).

A PRI-enabled system can be a switch that works on the

Public-Switched Telephone Network (PSTN) or Private Branch

Exchange (PBX). The Nortel Networks DMS-100 and the Nortel

Networks Meridian SL-100 are examples of PRI-enabled switches.

The SIP PRI Gateway’s primary function is to convert the packet-based

voice streams of the VoIP system to circuit-based voice streams of the

PRI-enabled system.

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