Table of Contents:

Definition and Overview

1. The Role of the Media Gateway in the Converging Network

2. Testing a Device Control Interface

3. Verifying Voice Paths across Dissimilar Network Types, a.k.a. Trunk Testing

4. Measuring Voice Quality across a Media Gateway

Self-Test

Glossary

PDF of this tutorial

ATM
Asynchronous Transfer Mode

BICC
Bearer Independent Call Control

DS–0
Digital Signal, Level 0 (64 Kbps)

IAD
Integrated Access Device

IETF
Internet Engineering Task Force

IP
Internet Protocol

IPDC
IP Device Control

ISUP
Integrated Services User Part

ITU
International Telecommunications Union

MEGACO
Media Gateway Control

MGCP
Media Gateway Control Protocol

PAMS
Perceptual Analysis Measurement System

PSQM
Perceptual Speech Quality Measurement

PSTN
Public Switched Telephone Network

QoS
Quality of Service

RTP
Real-Time Transport Protocol

SIP
Session Initiation Protocol

VoIP
Voice-over–IP