Voice over IP Foundations : VoIP Training Course

Voice over IP Foundations: VoIP Training 5-day training seminar, $2,495 5-day virtual (no travel) training course, $2,495		RCCSP Professional Education Alliance

Overview

What You Will Learn:

Core concepts of how Internet Protocol (IP) carries a VoIP packet
Advantages and disadvantages of SIP Trunking
Understand how DHCP and DNS supports IP telephony
Real-Time Transport Protocol (RTP)
Session Initiation Protocol (SIP) – Call set up, Instant Messaging, Presence
Session Description Protocol (SDP)
SIP proxy, Session Border Controller (SBC), and SIP softswitch
Media Gateway Control Protocol (MGCP) analysis
MGCP architecture
How to implement QoS to ensure the highest voice quality over your IP networks
The impact of jitter, latency, and packet loss on VoIP networks
How Wireshark can decode and troubleshoot RTP, SIP, and MGCP call flows
Discuss trixbox Softswitch and SIP proxy
Discuss SIP gateways and softphones

In this lecture-only course, you will learn core concepts of how the Internet Protocol (IP) carries a Voice over IP (VoIP) packet. You will learn the fundamentals of Session Initiation Protocol (SIP) architecture, SIP-related IP services, the advantages and disadvantages of SIP Trunking as well as Quality of Service (QoS)-Related Protocol.

Who Should Participate

This training is is ideal for people who need to understand VoIP technology. IT managers, technical sales/marketing personnel, consultants, network designers and engineers, product design engineers developing integrated-services products, telecom technicians and managers integrating PBX services within data networks, and systems administrators who will manage a converged network would benefit from this course.

Agenda

1. Packetizing Voice

Telephony Architecture
Introduction to the VoIP Standards
Connecting VoIP to PSTN
Traffic Engineering
PSTN to VoIP Using Magic
Voice Digitization
Companding Mu-Law vs. A-Law
Time Division Circuit Switching
Voice Packet
The 20-Millisecond Voice Packet
The 60-Millisecond Voice Packet
The Voice Packet Header
Other Voice Packet Sample Sizes
Voice Packet Analysis
Voice Packet Analysis: Other Voice Packet Sample Sizes
QoS Overview
Latency
Packet Loss
Jitter
Controlling Delay
Sources of Delay
The First Voice Packet
The Second Voice Packet
The Third Voice Packet
Jitter Buffer Under Perfect Conditions
An Adaptive Jitter Buffer

2. SIP Trunking

The Legacy Circuit Switch
VoIP Phases
VoIP Phase 1: LAN Connect the Line Side
VoIP Phase 2: Decompose the Switch Cabinet
VoIP Phase 3: Shrink the MGs and Add Survivability
VoIP Phase 4: Add SIP Trunking
VoIP Phase 5: Eliminate the Old MGs
VoIP Phase 6: Add EMUN
VoIP Phase 7: Mass Acceptance of SIP Trunking with ENUM?
SIP Trunking Costs
Other Means of Connection
The “Old PBX” can do SIP Trunking if the Vendor Offers the Software
SIP Trunking Protocols
Peer-to-Peer RTP
Hairpin RTP
Disadvantages and Advantages of SIP Trunking
Disadvantages
Advantages
ITSPs
SIP Trunking Examples
SIP Trunk Outbound Call
Public VoIP

3. Voip in the LAN

IP and Ethernet
A Sample Ethernet Switched Network
MAC Addresses
IP MAC Address Learning
known Destination MAC Addresses
Flood the Broadcast
Response to Flooded Packet
Learning Port Information
Switching
MAC Table Aging
Ethernet Communications Limits
Virtual LANs
VLAN Trunk
VLAN Tags
Untagged Frames
Port-Based VLANs
Broadcast Frame in VLAN 10
VLAN Trunking for VoIP Phones
IEEE 802.3af Device Detection
IEEE 802.3af Power Classifications
QoS at Layer 2
VLAN Tagging Process
IEEE 802.1q Frame Tagging

4. SIP-Related IP Services

DHCP Option for SIP
DHCP Discover
DHCP Offer
Root-Level Domain Registration
Basic Method of DNS
Why Start with ENUM?
ENUM: NAPTR Query
ENUM: NAPTR Response
Locating SIP Servers: An Example
NAPTR Response
SRV Query
SRV Response
A Record Query
Regular Expressions
The Metacharacters

5. Voice Compression

Voice Compression Hardware
ASICs
DSPs
Mean Opinion Scores
Codecs
G.711, G.723.1, G.726
G.728 and G.729
Voice Compression
Formants
The Predictor
PCM Sampling
Voice Compression Algorithms
ADPCM Compression
Vocoder
G.729 Example
Codec Comparison Exercise
Zero Packet Loss
Ten Percent Packet Loss
Twenty Percent Packet Loss
T.38 Fax Spoofing
Call Setup
Discovering the Fax Tone
T.30 Negotiation
Shifting to 9.6 Kbps
T.38 Phase

6. Real Time Transport Protocol (RTP)

7. SIP Architecture

SIP User Agents
SIP Requests (Methods)
SIP Response Codes
SIP Proxy
SIP Back-to-Back UA
Session Border Controller
Forking Proxy
SIP Redirect Proxy
Global SIP Architecture
Overview of Operation
Classic SIP Trapezoid
INVITE Request
Session Description Protocol
Proxy Function
180 Response
200 Final Response
BYE
INVITE and ACK
SIP Functional Stack
SIP Core Documents and Extensions

8. SIP Call Flow Examples

SIP Call Analysis
SIP Registration with Authentication
SIP Call without INVITE Authentication
The 100rel Process
Busy Number
Abandoned Call (Cancel)
SIP Redirect (Call Forward)
Call Transfer
E&M Tie Trunk
See a Problem
Solution: SIP 183 Response

9. Session Description Protocol

Session Description Protocol
v= Header
o= Header
s= Header
c= Header
t= Header
m= Header
a= Header
Offer/Answer Model
Offer/Answer: Example 1
Offer/Answer: Example 2
SDP Offer/Answer Rules
UPDATE Method
RTP SEND and RECV Defined
Media Direction and RTCP
How RTCP Works
Placing a Call on HOLD

10. SIP NAT Traversal

SIP NAT Traversal
One-Way Voice Results
Full Cone NAT
IP Address Restricted NAT
Port Restricted NAT
Symmetric NAT
Simple Traversal of UDP through NATs
Traversal Using Relay NAT
NAT with Embedded SIP Proxy
Public VoIP Example

11. Media Gateway Control Protocol (MGCP)

Protocol Comparison
MGCP Call Model
Hairpin Call Example
Defined Endpoints
MGCP Commands
MGCP Syntax Example
Return Codes
Return Code Table
Parameter Lines
DTMF Package
Line Package
Digit Maps
MGCP Trace Procedure
MGCP Trace (Steps 1-8)
MGCP Trace (Steps 9-14)
MGCP Trace (Steps 15-22)
MGCP Trace (Steps 23-28)
MGCP Established Call
MGCP Trace (Steps 29-36)
MGCP Trace (Steps 37-40)

12. Queuing

CoS vs. QoS
Leaky Bucket
First In, First Out
Type Classification
Session ID Classification (Fair Queuing)
Dequeuing
16. QoS-Related Protocol
Sources of Delay
Packetization Delay
Algorithmic Delay (Look Ahead)
Coder Processing Delay (Think Time)
Queuing Delay
Serialization Delay
Low-Speed Link
How 56-Kbps Links Cause Jitter
Upgrade to T1/E1 and Prioritize Voice
QoS Technology Solutions: Differentiated Services (DiffServ)
Supporting a VoIP Call with DiffServ
ToS Field
DiffServ Process at the Edge Router
DiffServ Process in the Core
DiffServ Highlights
Traffic Engineering: An Art Form
Measuring Engineering
Grade of Service
Appendix A: Glossary
Appendix B: H.323

Prerequisites

TCP/IP Networking

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Registration Fees

The registration fee for virtual training session is $2,495.

Classoom training begins at 8:30 AM each day and concludes at 3:30 PM unless otherwise directed. For information on virtual training session start and stop times, refer to the course schedule below.

Register securely online with confidence or please call (708) 246-0320.

Seminar Schedule

Mar 6-9, 2023 8:30 AM-3:30 PM ET Virtual Classroom

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Terms & Conditions

Seminar provider is not responsible for losses due to cancellation. In all circumstances, seminar provider's liability shall be limited to fees received.

Seminar agenda and assigned instructors are subject to change.

Public Training Terms & Conditions

Payment is due prior to the seminar.

Public seminar cancellation policy. Registrants may cancel up to fourteen days in advance of the seminar start date for a full refund, less administrative fees of $500. Or, you may transfer your registration to another member of your company at no additional charge. Registrants canceling within fourteen days of the seminar will receive training credit, less administrative fees of $500 toward any other Resource Center seminar.

In the unlikely event that a seminar must be cancelled by seminar provider due to unavoidable circumstances, you will be notified at least two weeks prior to the seminar date, and your payment will be refunded. Seminar provider is not responsible for losses due to cancellation including losses on advanced purchase airfares. We strongly recommend that attendees traveling by air to attend the seminar purchase only refundable tickets.