5-day Instructor-Led , 0900-1700

The Participant will be able to Identify the challenges associated with migration and wide deployment of NGN services Define the transport and signaling protocols Describe the major components of the NGN network Describe a typical network architecture Differentiate between the primary audio compression algorithms Identify different available services and applications.

Carriers and Service Providers are migrating to the Next Generation Network concept. Knowledge of the NGN architecture, protocols and underlying challenges is vital to anyone in contact with the telecom market. This course provides you with a better understanding of your customer’s needs.

In this course you will reveal the dynamics inherent in bringing voice and data together on a single network. You will learn how IP telephony has evolved; review topology, architecture, protocols and special issues. You will also hear about the IP telephony markets, various products and applications, infrastructures, services and network requirements.

Basic knowledge of IP Networks and Telephony

Communications and IT professionals, engineers, software developers, technical support personnel and field engineers.

Day 1

Market Trends: NGN and IMS

• The NGN concept and profile
• Softswitch functions
• NGN Architecture
• The next step - IMS

NGN Protocols and standards

• Peer2Peer versus Master/Slave protocols
• Typical NGN deployment
• Class 4 and Class 5 services

QoS and QoE challenges for NGN

• Definitions and terms
• The need for QoS
• Solutions providing QoS
• QoS requirements for Triple-Play

Media Gateway

• MGW Profile and functions
• QoS Mechanisms
• PSTN Interfaces
• Media over IP

Media GW Controller

• MGC concept and Profile
• MGC functions
• ENUM concept ? RFC3761
• MGC architecture

Summary, wrap-up and exercises

Day 2

RTP and RTCP

• Internet Multimedia Protocol Stack
• RTP Structure
• RTCP Profile and structure
• CRTP and Bandwidth consumption

Media Compression methods

• Coder types
• Bandwidth utilization
• Side effects of compression

Signalling Gateway

• Signaling Gateway - logical view
• Signaling GW profile and architecture
• Associated and quasi-associated modes
• SGW layers and Protocols
• Redundancy

NGN Applications

• The NGN concept and profile
• NGN architecture
• The unified voicemail concept
• Media server and Application server
• Contact Center

Carrier Grade compliancy

• Redundancy and NSPF
• Availability
• Reliability, performance and GoS

Summary, wrap-up and exercises

Day 3

H.323

• H.323 Architecture
• H.323 topology
• H.323 architecture and components
• H.323 call-flow
• H.323 v6

MGCP architecture and components

• MGCP protocol stack
• MGCP components (MGW, MGC, etc.)
• MGCP based network
• Call-flow examples

Megaco Architecture

• Master/Slave versus P2P
• Megaco standards and components
• Megaco architecture
• Megaco commands
• Call-flow Examples

SIP Introduction

• What is the Session Initiation Protocol
• The incentive
• SIP components
• SIP servers (proxy, registrar, redirect, location)

SIP Architecture

• Protocol stack
• SIP transactions and response codes
• Addressing format
• DTMF and VoIP (in band and out of band methods)

Summary, wrap-up and exercises

Day 4

SIP Protocol structure

• SIP timers for reliability
• Forking methods
• Provisional response acknowledge method
• Call-flow examples

Session Description Protocol

• SDP main tasks
• SDP Messages
• Mandatory and optional fields

SBC and Lawful Interception

• Stateful and stateless session controller
• Potential threats and solutions
• NAT traversal
• Lawful interception

Softswitch and Class 5 services- Part 1

• Softswitch profile
• SIP new methods
• Softswitch as application platform
• Class 4 and Class 5 functionalities

Softswitch and Class 5 services- Part 2

• Advanced voicemail
• Unified messaging
• Instant message

Summary, wrap-up and exercises

Day 5

SS7 and NGN Interaction

• SS7 and IP converged architecture
• SCTP - Stream Control Transmission Protocol
• SIGTRAN
• SIP-T and SIP-I (ISUP encapsulation and mapping methods)

NGN and 3GPP

• Mobile environment as an access
• IMS (IP Multimedia Subsystem)
• Functionality sharing between visited and home network
• Seamless integration of ?smart? wireless terminals into the IP networks

Network Impairments

• Network impairments description
• The sources of network impairments
• Correlation between the impairments

How to test the Next Generation Network

• What needs to be tested?
• Testing topology
• Generating predictive environment for testing
• Stress versus quality

Demo

• Signaling capture analysis
• SDP capture analysis
• QoS analysis
• Voice quality analysis

Examination

Conclusion, Question and Answering Session, Training Review