Course 133 VoIP and SIP Training:
Fundamentals of VoIP & IP Telecom Networks

Fundamentals of VoIP & IP Telecom Networks is a three-day vendor-independent training course covering all aspects of Voice over IP and the network it runs on.

Specifically designed for non-engineering professionals, this course will fill in the gaps and get you up to speed on all of the fundamental concepts and technologies involved with Voice over IP, SIP, SIP trunking, VoIP phone systems and telecom networks.

Eliminate buzzword frustration, and gain the knowledge to be confident!

Get a solid knowledge base to build on… structured, complete knowledge you can’t get on the job, reading articles or talking to vendors.

This is career-enhancing knowledge that lasts a lifetime, and training that will be repaid many times over in increased accuracy and productivity.

Top-ranked instructor, three days in the classroom, 300‑page course book with detailed notes, bonus CVA Online Courses, TCO CVA Certification.  $1495.

With numerous case studies and class exercises, you will learn

  • how a VoIP call is set up and carried end-to-end,
  • what SIP is,
  • how an organization saves money moving to softswitches and SIP trunking,
  • project management,
  • best practices

and more.

Register today!

Bonus! TCO Certified VoIP Analyst (CVA) Certification included!
Six online VoIP and SIP training courses & CVA Certification Exam, both with unlimited repeats

Second Bonus!
TCO Certified Telecommunications Network Specialist (CTNS) Certification also included!

Six online core telecom training courses & CTNS Certification Exam, both with unlimited repeats

Key Course Features

  • Learn what all of the VoIP jargon and buzzwords mean,
  • How VoIP works end-to-end; all of the components involved
  • Understand what SIP is and how SIP Trunking saves money
  • Fundamentals of the network VoIP and SIP run on
  • Who supplies what, and how it all fits together
  • Best practices, tips and tricks for managing deployment and migration
  • Case studies and class exercises to cement your knowledge
  • Bonus TCO Certified VoIP Analyst (CVA) online courses and certification

Course Modules

1. Fundamentals of VoIP
2. Fundamentals of Telecom
3. Fundamentals of Datacom
4. The Many Different Implementations of VoIP

5. Voice Packetization and Voice Quality
6. SIP and Softswitches
7. SIP Trunking & Carrier Connections
8. Testing and Troubleshooting VoIP

9. Organizing the Discussion: the OSI Layers
10. Ethernet on Copper, Fiber and Wireless
11. IP Addresses and Routers
12. TCP, UDP and Ports
13. IP Network Quality: CoS, QoS, SLAs and MPLS

14. VoIP Migration Project: Template with Steps, Tips and Tricks

Learning Exercises / Class Group Activities

Class Exercise: Trace a VoIP Call End-to-End Across Different Networks
Class Activity: Listen to Sound Clips with Packet Loss, Delay and Jitter
Group Exercise: Case Study – Saving Money Migrating Five-State Company to VoIP
Class Exercise: IP and MAC Addresses
Group Exercise: Group Collaboration Open-Book Final Exam

Certification & Online Courses Included

TCO Certified VoIP Analyst (CVA) Certification Package, Unlimited Plan
Six online courses + CVA exam, with unlimited course & exam repeats

TCO Certified Telecommunications Network Specialist (CTNS) Certification Package, Unlimited Plan
Six online courses + CTNS exam, with unlimited course & exam repeats

Course Materials Included

Printed 300-page course workbook with detailed notes, sure to be a valuable reference
VoIP Quality Metrics and Thresholds poster

Duration, CPE Credits and Tuition Fees

3 days, CPE credits: 20 contact hours
Tuition $1495. Earlybird and group discounts available.

Detailed Course Outline


1. Fundamentals of VoIP and SIP

We will start with the fundamentals of Voice over IP: the basics of communicating voice in IP packets, demystifying the jargon and buzzwords and explaining in plain English the components of a VoIP telephone system like soft switches and gateways, what each does, along with protocols like SIP.

  1. Why VoIP? Saving Money Via Convergence
  2. VoIP System Components
    1. VoIP Phones
    2. Voice in IP Packets
    3. Softswitches / SIP Servers / Call Managers
    4. Media Servers and Unified Messaging
    5. Gateways
    6. LANs and WANs
  3. Key VoIP Standards

2. Fundamentals of Telecom

As one of the main uses of VoIP is to make telephone calls, having a solid base in the fundamentals of telecom and the telephone network is essential. You will fill in gaps and learn how the telephone network is structured, who does what, how it’s done, and how connections are made. We’ll demystify loops and trunks, COs and wire centers, analog, the voiceband, digital, DS0 channels vs. packets, switched access and toll centers, and understand how phone companies, cable companies, wireless carriers and internet VoIP carriers connect.

  1. The Public Telephone Network
  2. Loops, trunks and circuit switching
  3. Analog, The Voiceband and POTS
  4. Line card: in CO, Remote, OPI, CPE, then gone
  5. Voice Digitization: 64 kb/s and DS0s
  6. Voice in Packets vs. Voice in Channels
  7. How and Where Carriers Connect VoIP
  8. Toll Centers and POPs
  9. Access, Switching, Transmission
  10. Connecting Ma Bell, Cellular, Cable and Internet VoIP Carriers

3. Fundamentals of Datacom

In this module, you will learn the basics of data packet networks – now used to carry VoIP phone calls along with Internet traffic, video, business data and everything else. We’ll start with circuits, LANs and WANs, then understand the fundamental ideas of how routers relay packets from one circuit to another to reach the far end, and how this is accomplished with addresses and packets carried in frames.

  1. Circuits, LANs and WANs
  2. Frames and MAC Addresses
  3. Packets and IP Addresses
  4. How Routers Implement Networks

4. The Many Different Implementations of VoIP and SIP

"Voice over IP" can happen in many different ways. One by one, we'll review the many flavors of VoIP, comparing and contrasting the various implementations and architecture choices. Starting with Internet telephony, we will then understand VoIP at the telephone company, how VoIP connects to older systems, and new services like SIP Trunking. We will compare and contrast choices for a VoIP system: getting it from the phone company; buying a call manager / softswitch; renting a Hosted PBX; and cloud solutions. You’ll gain the knowledge to confidently differentiate VoIP architectures and discuss pros and cons of options.

  1. Internet Computer-Computer VoIP, e.g. Skype
  2. VSP: Internet to Phone, e.g. Google Hangouts dialer
  3. VSP: Phone to Phone over Internet, e.g. Vonage
  4. VoIP Becomes The New POTS
  5. VoIP at Carriers
  6. Session Border Controllers
  7. VoIP for Businesses and Organizations
  8. VoIP-Enabled PBX, Migration Options
  9. PBX Replacement with Softswitch / Call Manager
  10. SIP Trunking Replacing PBX Trunks
  11. Hosted PBX
  12. Cloud Services and Softswitch as a Service (SaaS)
  13. IP Centrex
  14. Asterisk and Open-Source Softswitch Software
  15. Phone Powering and Power over Ethernet (PoE)

Class Exercise: Trace a VoIP Call End-to-End Internet to Cellphone
We'll establish a phone call from a VoIP client on a computer in the classroom via Wi-Fi and the Internet to a cellphone in the classroom, and identify where the voice packets travel, from one circuit, device, and company to the next, end-to-end between the two sets of microphones and speakers. This will cement your understanding of VoIP telephone calls, the telecom business and how everything is connected.


5. Packetized Voice and Sound Quality

In this module, you’ll learn what exactly packetized voice is, how it happens, and the various standards in use. You’ll learn about the factors affecting sound quality, and how packets actually get “lost” in a network. We’ll listen to sound clips of impairments, and provide you with a practical checklist of tips and recommendations for ensuring success.

  1. Voice Packetization & RTP
  2. UDP and Ports C. Protocol Stack: RTP, UDP, IP, MAC
  3. Measuring Voice Quality
  4. Factors Affecting Voice Quality
  5. Codecs: G.711, G.729, HD Voice
  6. Network Delay and Jitter
  7. How Packets Get “Lost”

Class Activity: Sound Clips with Impairments
Listening to sound clips, you'll hear the effect of different levels of uncorrected delay, jitter and packet loss, and understand how the quality of the reproduced speech at the far end is affected.

6. SIP and Softswitches

SIP is the open, standard protocol for setting up Voice over IP telephone calls. All VoIP systems that purport to be “compatible” or “standards-based” must implement the Session Initiation Protocol. SIP defines the procedure and messages to set up a phone call – or any other kind of communication. In this chapter, you’ll learn what exactly setting up a VoIP telephone call entails, understand what SIP is, how it works, demystify jargon like proxy server, registration and location server, understand how SIP fits in with softswitches and call managers, and trace the establishment of an IP phone call step by step. At the end of this, you’ll understand how VoIP phone calls are set up – maybe worth attending the course all by itself!

  1. Softswitch vs. PBX or CO Switch
  2. What SIP is and What it Can Do
  3. Relationship to Other Protocols
  4. SIP URIs: “Telephone Numbers”
  5. Registration and Location
  6. Outbound Proxy
  7. Finding the Far End
  8. The SIP Trapezoid
  9. SIP Message Example
  10. Useful Call Disposition Rules Enabled by SIP
  11. Similarities and Differences: VoIP vs. Web Browsing
  12. SIPS: Transport-Layer Security
  13. How SIP Relates to Softswitches and Call Managers
  14. Google Voice: Cloud SIP Services for Individuals

7. SIP Trunking and Carrier Connections

This chapter is all about connecting an in-building business VoIP phone system to the world. First, we’ll understand how connections used to be implemented with PBX trunks and ISDN PRI service. Then we’ll see how a gateway connects a modern VoIP system onto PBX trunks, and most importantly, how SIP Trunking replaces PBX trunks with a lower-cost and more flexible solution.

Many big organizations have an existing data network, implemented as a VPN by a carrier. We’ll look at the advantages and disadvantages of using the “data” VPN, or the Internet, compared to SIP Trunking, and finish off with a practical checklist of features and technologies to require when choosing a carrier.

  1. Installed Base: PBX Trunks & PRI Service
  2. DS0 Interconnect with the Telephone Network
  3. Gateways: PBX Trunks + PRI ↔ IP Packets + SIP
  4. Megaco (H.248/RFC2885) and MGCP
  5. SIP Trunking
  6. Advantages of SIP Trunking over PBX Trunks
  7. VoIP over “Data” VPNs
  8. VoIP over Internet VPNs
  9. Saving Money with Integrated Access
  10. Fallback to PSTN?
  11. Redundancy and Disaster Recovery
  12. Tips for Selecting a VoIP Carrier

Group Exercise: Case Study – Saving Money Migrating Five-State Company to VoIP
To cement your understanding of VoIP phone systems and carrier services, and even gain valuable insight into your own situation, you'll work in a group to come up with the best solution for a company with 5,000 people in five states to migrate from PBX trunks to VoIP. The winners will be the ones who save the most money. Bonus points for saving money and providing useful new features!

8. Testing and Troubleshooting VoIP

We’ll round out the discussion of VoIP systems identifying what could go wrong, and how trouble is identified and resolved. Without getting bogged down on technical details, you will learn the main areas where things go wrong, what the trouble symptoms are, and how to go about fixing the problem.

  1. What Could Go Wrong?
  2. Phone Issues
    1. Phone Hardware and Software
    2. Cabling and Powering
  3. System Issues
    1. IP Addresses
    2. SIP Registration
  4. Network Issues
    1. LAN
    2. WAN
  5. Testing and Monitoring
    1. Fault Sectionalization
    2. Network Device Audit
    3. Testing Delay, Jitter, Packet Loss
    4. Monitoring and Proactive Maintenance
  6. Tips for Maximizing Voice Quality

Bonus! All students receive a large printed poster explaining VoIP call quality metrics and thresholds. Besides being cool cubicle wall covering, it provides a lot of useful information!


9. Organizing the Discussion

Much of the last day is devoted to understanding the modern IP-based telecom network. To get started, we’ll organize the discussion using the OSI 7-Layer Reference Model, explaining what a layer is, what the layers are, and giving examples of protocols like TCP and IP and where they fit.

  1. The OSI Model
  2. The OSI Layers
  3. Protocol Stacks

10. Ethernet on Copper, Fiber and Wireless

Ethernet and its MAC frames are the building blocks of new telecom networks, both in-building and between buildings. A VoIP phone plugs into a copper Ethernet LAN cable, or uses an Ethernet Wireless LAN to connect to the network. The network itself is built with point-to-point circuits conforming to the Optical Ethernet standard connecting equipment in different locations with fiber.

In this module, you will learn the basic principles of Ethernet and LANs, the crucial concepts of MAC addresses, MAC frames and broadcast domains, how devices connect via LAN switches, and how VLANs separate groups of users.

  1. MAC Addresses, MAC Frames and Broadcast Domains
  2. Ethernet and 802 standards
  3. LAN Cables
  4. Layer 2 Switches
  5. VLANs
  6. Optical Ethernet
  7. Wireless Ethernet (Wi-Fi)

11. IP Addresses and Routers

Routers implement the network by relaying packets from one circuit to another. Determining which circuit to relay the packet to is the routing part of the story. In this module, you will fill in gaps, learn how IPv4 addresses are organized and how they are used to route packets between telephones during a VoIP phone call. We’ll cover DHCP, static vs. dynamic addresses, public vs. private addresses, NAT and how ARP relates Ethernet to IP. To be ready for the future, we’ll finish with a review of the IPv6 address structure and usage.

  1. IPv4 Address Classes
  2. CIDR: Prefix and Subnet Mask
  3. DHCP, Static and Dynamic Addresses
  4. IP Network Example: Routers Connected with Dedicated Lines
  5. Routers and Packet Filtering
  6. Sending a Packet: Address Resolution Protocol
  7. Public and Private IPv4 Addresses
  8. Network Address Translation
  9. IPv6
  10. IPv6 Address Allocation and Address Types

Class Exercise: IP and MAC Addresses
Using the Windows interface, we'll determine the current MAC and IP Addresses of a classroom computer, and the private and public IP addresses of the Edge Router and NAT it's connected to. This will help visualize what IP addresses are, and covers two of the questions on the Final Exam.

12. TCP, UDP and Ports

You will learn that IP does not come with any guarantees. There is no guarantee a packet will be delivered. Nada. To be sure a packet gets delivered, we use TCP or UDP. Plus, we’ll demystify a second piece of information that sneaks in with TCP and UDP: ID of the computer program you want to talk to. This ID is called the port number.

  1. Unreliable Network Service
  2. Certified Mail
  3. TCP vs. UDP
  4. What is a Port?
  5. Well-Known Ports
  6. SIP Port and Media Port

13. IP Network Quality: CoS, QoS, SLAs and MPLS

You will also learn that IP networks do not come with any performance guarantees: when the next packet will be transmitted, and how often that might happen… but banks, other carriers, government and other large organizations need guarantees. Guaranteed IP packet data communications between locations is called a VPN or MPLS service. We’ll demystify and sort out Quality of Service, Class of Service (CoS), Service Level Agreement (SLA) and MPLS.

  1. Carrier Networks
  2. MPLS
  3. Class of Service Guarantees
  4. Service Level Agreement
  5. MPLS Services

Group Exercise: Open-book group collaboration final exam: Full VoIP Protocol Stack
At this point is the in-class Final Exam. The good news: it is done in groups, open book.

Determine the full VoIP protocol stack, identifying information needed at each of the 7 layers for a VoIP – VoIP telephone call. Exam format: fill in the blanks on a diagram of a protocol stack.

This requires understanding all of the pieces involved in moving a telephone call in IP packets from one person to another, touching on everything covered in the course.

Everyone participating in the in-class group-collaboration open-book final exam will receive a course completion certificate. Those who write the optional online CVA exam after the class will also receive TCO Certified VoIP Analyst certification.


14. VoIP Migration Project Steps, Tips and Tricks

The final module is a template for managing a VoIP project, with detailed checklists in the course book. Going through the template, you’ll learn how to do it the “right” way, from analyzing requirements to running trials, evaluating and selecting a vendor, rollout, acceptance testing and more. This project management guide is packed with practical tips and checklists to put to immediate use. If you are about to embark on a VoIP deployment, this might well be worth the price of the course all on its own!

  1. The Need for a Process
    1. Requirements before design before product purchase
  2. Dealing with Vendors
    1. Who is in charge here?
    2. Sales techniques to beware of
  3. Step 1: Internal Requirements Specification
  4. Step 2: Identify Potential Vendors
    1. Generating a Request for Information (RFI)
    2. Checklist: Who is providing what?
  5. Step 3: Qualify Vendors
  6. Step 4: Evaluate Qualified Vendors
    1. Setting up a captive test environment
    2. Trial their system
    3. Procedure: How to run tests and evaluate the results
  7. Step 5: Vendor Selection
    1. Generating a Request for Quote (RFQ)
    2. Reconciling the RFQ and the responses
    3. Dealing with unwanted features
  8. Step 6: Close the Deal
    1. Checklist: Core contract clauses and items that must be specified
    2. Negotiating the price
  9. Step 7: Roll Out the System
    1. Structured roll-out
    2. Leaving room for a roll-back
  10. Step 8: Maintenance
    1. Template: Trouble categories and response standards
gsa schedule contract GS-02F-0053X

Who Should Attend

  • Professionals needing to fill in the knowledge gaps, understand VoIP and network buzzwords and jargon, technologies like SIP, services like SIP trunking, and most importantly, understand the underlying ideas, and how it all fits together.
  • Non-Engineering professionals who are in need of a solid knowledge base to be more effective in dealing with PBX replacement and VoIP migration projects.
  • Managers and planners.  Telecom system administrators.  Finance, tax and accounting personnel.  Software and support system developers.
  • Decision-makers and project managers who need to understand what the "techies" are saying.
  • Anyone in telecom who needs to upgrade their knowledge to Voice over IP and IP telecom networks.
  • Anyone willing to invest three days to obtain career-enhancing training, with certification and reference book.

Teracom Advantages

  • Designed for Non‑Engineers
    Understand the jargon, buzzwords and technologies, underlying ideas and how it all works together, without bogging down on details.
  • Vendor Independent
    Core foundation knowledge that can be applied to any related project or system.
  • Value Pricing
    This three-day course is value priced at only $1495. Compare to $3995 for lower quality elsewhere.
  • High-quality course materials
    You will get a 300-page high-quality course book with copies of all diagrams plus detailed notes, sure to be a valuable reference for years.
  • Certifications included
    Bonus CVA Online Courses and TCO Certified VoIP Analyst (CVA) Certification Exam, both with unlimited repeats and no time limits.

Training Goal

Our goal is to bust the buzzwords, demystify jargon, understand technologies and mainstream solutions and - most importantly - the ideas underlying all of this, and how it all works together... knowledge you can't get on the job, talking to vendors or reading trade magazines.

How You Will Benefit

You'll gain a long-lasting, solid base of unbiased career-enhancing knowledge you can build on, an investment sure to be repaid many times over, increasing your confidence and productivity and eliminating jargon- and buzzword-related frustration.

Plus, you will receive a high-quality 300-page workbook – a valuable reference packed with detailed notes, diagrams and practical explanations, with experience, tips and templates you can put to immediate use.

And - Certification is included: Bonus CVA Online Courses and TCO CVA Certification Exam are included.

Don't Miss This Opportunity!

If you've read this far, you know by now that this is the training you've been looking for to fill the gaps and get on top of telecom. Coverage of all major topics, high-quality course materials, certification and certificate suitable for framing, bonus free textbook and value pricing... don't miss this opportunity. Invest in yourself and your career and register for this course now.

How to Register

Space in our seminars is limited, and may sell out, so please register as early as possible to reserve your place. You can register online or by phone:

Register online

• Register by phone at 1-877-412-2700

Once you register online or call us, we'll send your registration package by email, including a confirmation letter for you to sign and fax back to complete your registration. There is no obligation until you return the signed confirmation letter and you can cancel anytime up to two weeks before the course with no penalty.

We accept Visa, MasterCard and American Express, as well as checks, purchase orders, ACH and wire transfers, and most debit cards via PayPal.

Bring This Course To Your Location

In addition to scheduled public seminars, since 1992, we have provided high-quality on-site training at 3Com, Qualcomm, Intel, Cisco, Nortel, AT&T, Alcatel, Kyocera, T-Mobile, Ericsson/Hewlett-Packard, Verizon, MindSpring, APEX Telecom, Equifax, Transamerica Insurance, CNA Insurance, the US Air Force, Bell Canada, TELUS, Cap Gemini, ComSec Establishment, MicroCell, TDS Telecom, Western Wireless... to name a few.

Onsite training has special advantages:
• Your personnel will be up to a common speed with a solid knowledge base.
• We'll fill in the gaps and put in place productivity-enhancing structured understanding.
• The seminar will be a strong team-building exercise.
• Significant reductions in training costs are often achieved.
• Each student receives a detailed workbook / textbook that will be a valuable reference for years to come.

We have built a solid reputation for delivering high-quality team-training programs that are a resounding success. We would love to do the same for you!  Hold a private onsite course with as few as 7 people!

Please contact us at 1-877-412-2700 or visit the onsite training page for more information.

Technical Level and Intended Audience

Our training has been taught to wide acclaim across North America since 1992 and is designed for professionals needing an overview and update, and for those new to the business needing to get up to speed quickly.

Our emphasis is conveying the key concept-level knowledge in plain English - which you can't get reading trade magazines or talking to vendors. We put in place a solid, valuable and long-lasting understanding. It is our goal to bust the buzzwords, demystify the jargon, and cut through the double-talk to present a clear, cohesive picture.

Teracom's proven instructor-led training courses have been developed and refined over more than twenty years providing training for organizations including AT&T, Verizon, Bell Canada, Intel, Microsoft, Cisco, Qualcomm, the CIA, NSA, IRS, FAA, US Army, Navy, Marines and Air Force and hundreds of others. These courses are top-notch, top-quality and right up to date with the topics and knowledge you need.

Our GSA Contract for supplying this training to the United States Government is your assurance of approved quality and value.

Quality You Can Trust

Benefit from decades of knowledge, insight and experience distilled into clear lessons designed for non‑engineers, logically organized to build one concept on another… in plain English. Join our thousands of satisfied customers including:

we provide training to at&t             we provide training to verizon             we provide training to Bell Canada             microsoft             we provide training to intel             we provide training to cisco             GSA contract holder - pre-approved pricing and quality - supplier to the US Government             cox cable            

and the FBI Training Academy, US Marine Corps Communications School, US Army, Navy, Air Force and Coast Guard, the NSA and CIA, IRS, FAA, DND, CRA, CRTC, RCMP, banks, power companies, police forces, manufacturers, government, local and regional telcos, broadband carriers, individuals, telecom planners and administrators, finance, tax and accounting personnel and many more from hundreds of companies.

Teracom's GSA Contract GS-02F-0053X for supplying this training to the United States Government is your assurance of approved quality and value.

Course 133 Fundamentals of VoIP & IP Telecom Networks