Voice Over IP (VOIP) Training Courses - Voice-Technologies.com

Voice over IP Essentials *** Duration: 2 days

Course Content

An in-depth examination of the methods and techniques used to transport voice in real-time over networks. Technology issues at all the protocol stack layers are dealt with including voice compression techniques, network limitations, QoS transport protocols and call set-up and control. The course concludes with a brief look at H.323, SIP and MEGACO and some examples of VoIP implementations

Course Objectives

Voice over IP standards, regulations and structures

Understand how the requirements of voice impact on networks - interoperability and integration

Recognise the potential of VoIP and the role played by SIP, H.323 and MEGACO

Appreciate the operation of all layers of the protocol stack in the transmission of voice across data networks

Who Should Attend

Technical development and support professionals from carriers, ISPs, system vendors, integrators, end-users and corporates

Software and hardware development engineers, technical marketing, developers and planning professionals in communications applications and systems vendors and carriers

Datacoms and telecoms managers

Prerequisites

Delegates should have knowledge of communications or standard data networking with some knowledge of telephony concepts and TCP/IP

Course Outline

Introduction

Telephony Service and the Internet

Voice/data Convergence Infrastructure

Bandwidth Consolidation

VoIP protocols, standards and integration

Telecoms Review

Voice and Telecom Circuits
Switching
Coders/Decoders
Mean Opinion Scores

IP Attributes for VoIP Review

IP Protocols
TCP or UDP Transport
Port Significance and application Interface
Fragmentation and header compression
Timing issues and Packet Switching

RTP/RTCP

Features of RTP and IP Framework
Encapsulation and Payload Mapping
Header Fields
Source Identifiers (SSRC/CSRC)
RTCP Functions and Packet Types

QOS and Performance

Grade of Service and Capacity Planning
Queuing and buffering methods
Differentiated Services (Forwarding)
MPLS, IEEE 802.1p/Q, RSVP

VoIP Developments

IETF - SIP, MEGACO;ITU-T - H.323

VoIP Call Establishment

Establishing the requirements
Registration, Capability, Call Setup, Control

H.323 v 3 with Version 4 Updates

ITU-T H.323 Family and G Series
Terminals as H.323 endstations
Gatekeepers and Call Agent functionality
Gateways and Protocol translation
MCU and Conference capability
H.225.0 RAS and Q.931
H.245 and capability exchange
Fast Connect
Call/Session Flows Expounded

Session Initiation Protocol

Server and Proxy Server
Session Description Protocol
Messages, Call Methods and Headers
Status Codes and HTTP Compatibility

MGCP, MEGACO/H248

Concepts and Gateway Decompression

Call Agents and Residential gateways

VoIP Application

Remote Access and Internet Telephony

PC Client to PSTN Telephone

PBX Call Routing and Branch Extension

Route Replacement

ISP Internet telephony Model

Convergence of Technologies

Voice-Technologies.com reserves the right to alter the contents of this course as necessary.