Voice over IP (VoIP), which integrates voice and data transmission, is quickly becoming an important factor in network communications. It promises lower operational costs, greater flexibility, and a variety of enhanced applications. VoIP Fundamentals provides a thorough introduction to this new technology to help experts in both the data and telephone industries plan for the new networks. The hands-on labs are very useful methods to understand the A-Z of VoIP.
Objectives
After completing this course, students will be able to:
Explain the basics of telephony and TCP/IP
Understand the engineering tools and procedures required for a voice network and the current technologies leading to the integration of voice and data networks
Explain the basics of Voice over IP (VoIP)
Understand existing and emerging standards for VoIP and network architectures to support VoIP
Understanding Carrier Grade VoIP Technologies
Describe the protocols that support VoIP calls and explain how IP works with the PSTN
Identify some of the challenges VoIP faces in today's networks to demonstrate a good understanding of its capabilities
Explore the latest enabling technologies
Explain Softswicth/MGC, Media Gateways, SIP, Megaco, and MGCP
Voice characteristics, compression standa Mean Opinion Scores (MOS)
Learn about the functional components involved in using gateways to deploy VoIP networks
Explain the concepts of quality of service enforcement techniques
Explain performance and voice quality considerations
Discuss VoIP OSS/BSS
Review transitioning to the All-VoIP PSTN and VoIP Taxation
Explore project planning process of VoIP
Review successful VoIP deployments for wireline, wireless, and cable operators
Discuss successful and unsuccessful VoIP deployments
Step through a practical process for managing a VoIP deployment project
Explore the current and future market trends
Discuss Video Services Over IP
Course Outline
Introduction
Telephony Terminology
Public Switched Telephone Network (PSTN)
Circuit Switched and Packet Switched
Voice and Video Communications
VoIP and Next- Generation Services
Voice Compression
Performance and voice quality considerations
Voice & Data Convergence
The Numbering Plan for Telephony - E.164
Signaling
Q.931 Messages
Signaling System Number 7 (SS7 )
Examples of the SS7 Functions
SS7 Signaling Architecture
Challenges In Transitioning to an all VoIP
Carrier Grade Services
Regulations and Taxation
Basics of TCP/IP
Transmission Control Protocol (TCP)
User Datagram Protocol (UDP)
Connection-Oriented Protocol vs. Connectionless Protocols
Session Initiation Protocol vs. Softswitch (MGCP and MEGACO)
MEGACO and H.248
Protocol Comparison
Simple Control Transmission Protocol (SCTP)
Sigtran Architecture
M2UA and M3UA
Simple Conference Control Protocol (SCCP)
Real Time Streaming Protocol (RSTP)
Comparison of VoIP Call Control Protocols
QoS Considerations in VoIP Network Design
Voice over Packet (VoIP, VoATM) Quality of Service (QoS)
QoS Building BlocksVoIP Quality of Service Provisioning
VoIP QOS Requirements Delay, Loss, Blocking
Issues Affecting Voice in an IP Network
Delay in General
Fixed and Variable Delay
Variable Delay Factor: Jitter
Variable Delay Factor: Packet Loss
Variable Delay Factor: Sequence Errors
Variable Delay and QoS Mechanisms
Quality Measurements and Mean Opinion Scores (MOS)
Echo and the Use of Echo Cancelers
Delay Variation and Jitter Buffers
Managing Delay Addressing Quality of Service
Bandwidth Limitations
Traffic Policing
Traffic Shaping
IP QOS Mechanisms
Integrated Services
Differentiated Services
Resource Reservation Protocol (RSVP)
Integrated Services (Int Serv) and QoS
Int Serv Service ClassesIntegrated Services Architecture
Differentiated Services (DiffServ) and QoS
Common Open Policy Server (COPS)
Multi-Protocol Label Switching (MPLS) and QoS
MPLS Operation
MPLS-TE
VoIP OAM&P and deployment
Overview of Management Layers
VoIP SLA Management Architecture
VoIP Management Data Sources
Performance and Fualt Management Functions
VoIP Provisioning
Service Control and QoS
Maintaining an SLA
Billing and CRM
Security and Reliability
VoIP Implementations
VoIP Services
VoIP over DSL/Cable Modems
Large-Scale VoIP Service Deployment
Business Operations Solutions
VoIP BSS/OSS and NMS
VoIP E-911 and CALEA
High-Availability VoIP Network
Standards and QoS
Interworking with the Public Switched Telephone Network (PSTN)
Implementing the PSTN Switch/VoIP Gateway Trunk
IP Centrex
Video Bundling With VoIP
Softswitch
Services and Implementation Issues
Security Considerations for VoIP Networks
Network Access Security
Device Security
Using IPSec
VoIP Traffic Cases
VoIP Implementations Lessons Learned
Revenue Assurance for VoIP
Potential hidden pitfalls
Deployment issues and challenges
A project framework for managing a VoIP deployment
Pulling it All Together
Case Studies
LAB 1: Using Lines and IP Bandwidth Calculation
It can be used to estimate the bandwidth required through an IP based network for a fixed number of voice paths. voip bandwidth calculator calculates the bandwidth requirements for voice over IP. This depends on the voice compression scheme used (e.g. G.711, G.723, G.728, G.729), the packet interval and the transport protocol (RTP, cRTP).
This course is designed to provide an overview for strategic or technical managers, consultants, communications professionals, software engineers, system engineers, network professionals, marketing and sales professional, IT professionals, and others who plan on using, evaluating or working with VoIP networks, applications and services.
Prerequisites
Basic understanding of telephony and TCP/IP is recommended.
Testimonials
The 4-day course was technically excellent. The architecture of PSTN network and how it works, was very useful to me. I think the instructor is very knowledgeable. He is an excellent instructor. I will recommend this course.
L. Wing, Covad Communications, Covad's Location
the time we provided I learned much of the terminology and a good basic understanding of how VoIP works. I really appreciated the instructor's knowledge and his willingness to share and enable us to learn.
The instructor is a very knowledgeable and interesting instructor. He works to share knowledge and he's willing to provide information even after class and on breaks. It was a pleasure observing his methods of instruction and being exposed the basics of this complicated subject. Thanks for doing a good job despite not enough time and a too diverse audience.
