Voice over IP training - VoIP training

A comprehensive, up-to-date course on VoIP for those who need to get up to speed, sort out architectures, protocols, standards, buzzwords and jargon, understand issues, separate hype from reality and plan for managing deployment of VoIP.

This course is ideal for managers, and professionals involved with analysis, planning, purchasing, marketing, sales or administration of VoIP systems, products or services.

Here’s why you should take this course:

Eliminate frustration and uncertainty of not knowing terms and technologies through a clear explanation of VoIP fundamentals, systems, components, standards, jargon and buzzwords.
Cut through the vendor hype and jargon to get an unbiased understanding of mainstream choices for VoIP implementation which allow you to make informed decisions and meaningful comparisons.
Get an overview of security including: machine security, network security, OS security, information security, app security, communication security, and the risks, mitigation measures and best practices.
Get updated on 5G, new spectrum, New Radio, 5G handsets, and the way that in the future everything will be online from toasters to self-driving transport trucks to brain implants.
Receive an up-to-date 225-page high quality bound manual / reference with detailed text notes bringing this information together in one resource which is impossible to find in one place anywhere else.
Learn from the best. Our instructors consistently receive high ratings on student evaluations including specific praise for their ability to explain complex ideas in simple terms; have decades of work experience in telecommunications; hold Engineering degrees or the equivalent.
Obtain an optional VoIP certification. The TCO Certified VoIP Analyst (CVA) Certification Package Unlimited Plan is included.

Covering the topics in a systematic way, we build structured knowledge that lasts a lifetime.

You'll gain key concept-level knowledge, and a totally unbiased view of VoIP technologies, trends and mainstream solutions that you can't get on the job, from magazines or vendors.

A must for anyone involved in a VoIP project, or wanting to upgrade their marketable knowledge skills.

Following is the course outline. Click the links above for full information on this VoIP training seminar.

Course 130  Voice over IP (VoIP)

Course 130 Voice over IP, SIP, Security, 5G and IoT is 2 days of vendor‑independent training for non‑engineers covering VoIP, SIP, a survey of security, 5G, IoT (the Internet of Things), and examples of applications like Ultra-Broadband, Platooning on Interstates and Smart Cities.

Part 1: VoIP and SIP

The first part of this course is devoted to VoIP basics and SIP. We cover what Voice over IP is, what SIP is, how SIP works, SIP Trunking, all of the buzzwords, jargon and concepts, and the pros and cons of possible VoIP system models: Softswitch / Call Manager vs. IP Centrex vs. Hosted PBX vs. Cloud Service.

We begin with VoIP buzzwords and jargon, the basics of voice communication using IP packets, the components of VoIP systems and what they do: soft switches, gateways, media servers and terminals, plus the key protocols and standards used in VoIP systems. In the last lesson we cover "where this is headed" - what basic "telephone" service will look like 20 years from now.

1. The Big Picture
2. VoIP System Components
1. Terminals
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
4. Where This is Headed: Broadband IP Dial Tone

2. VoIP for Individuals

“Voice over IP” mean many different things. We begin with how it got started: phone calls between individuals over the Internet. You will learn how VoIP telephone service works over the Internet with a practical demonstration of Voice over the Internet to a cell phone. We will trace the voice packets from end to end, through all of the devices, buildings, circuits and carriers involved, starting from a laptop in the class over the Internet and on to a cell phone in the class.

1. Computer-Computer VoIP over Internet: Internet Telephony
2. Internet Telephony Clients
3. Internet to Phone: VSPs, e.g. SkypeOut
4. Class Exercise: Tracing a Phone Call from a Laptop to a Cellphone
5. Internet VoIP with an Adapter and a PSTN Phone Number VSP, e.g. Vonage
6. VoIP - the New POTS

3. VoIP Implementations for Businesses

We will compare and contrast the various choices for a VoIP phone system for a business: implementing a Hosted PBX; replacing the PBX with a softwitch or Call Manager; upgrading an existing PBX; using a Softswitch as a Service; IP Centrex; and Cloud-based services from the phone company. You will gain the knowledge to differentiate VoIP architecture options and confidently discuss the pros and cons.

1. Migration Options to a VoIP-Enabled PBX
2. Premise Call Manager / Softswitch: PBX Replacement
3. Cloud Services and Hosted PBX: SaaS - Softswitch as a Service
4. SIP Trunking
5. IP Centrex
6. Open-Source Softswitch Software eg Asterisk
7. PoE, Phone Powering
8. Configuration LANs for VoIP
9. Public Safety Communications
10. Personal Communicators for Hospitals like Star-Trek
11. Business VoIP Phones Apps
12. Application Example: IP Call Center

4. SIP and VoIP Call Flow

The open standard protocol used to set up Voice over IP phone calls is SIP. A standards-based VoIP systems must follow the Session Initiation Protocol. SIP defines the procedure and messages for setting up a phone call, or any kind of communication. We describe what SIP is, how SIP works, and the relationship between SIP and softswitches and call managers demystifying jargon like proxy server. Then we trace the steps to connect an IP phone call. In the end, you will understand how phone calls are implemented in VoIP telephone systems which in itself may be worth attending the course!

1. What SIP is and Can Do
2. Relationship to Other Protocols
3. URIs: SIP "Telephone Numbers"
4. Registration, Location
5. Outbound Proxy
6. Locating the Far End
7. The SIP Trapezoid
8. SIP Message Example
9. SIP Relationship to Softswitches / Call Managers
10. Relating SIP URIs and PSTN Phone Numbers
11. Cloud-based SIP Services for Individuals: e.g. Google Voice

5. Voice Quality

Call quality is key, particularly for the callers! Here, you will learn how voice quality is measured, what factors affect VoIP quality including jitter, delay, lost packets and codec, and how they can be mitigated. We will demystify how packets actually get "lost" or delayed, and listen to the resulting reduced call quality. We finish with a practical list of recommendations and tips to ensure success.

1. Packetizing Voice
2. Measuring Voice Quality
3. Voice Quality Factors
4. Compression, Codecs and G.711
5. Delay and Jitter in the Network
6. UDP and RTP
7. Layers 1-3 of IP Networks
8. Protocol Stack: UDP, RTP, IP, MAC
9. Packet Loss and Sound Sample Demos
10. Troubleshooting and Testing Voice Quality
11. Tips: Maximizing Voice Quality

6. VoIP Carrier Services

We complete the Voice over IP section with carrier connections, starting with CoS (Class of Service) performance guarantees in SLAs (Service Level Agreements) and ending with selection of a VoIP carrier. We will cover replacing PBX trunks with SIP trunking for business telephone systems; connecting with Megaco and gateways; and how cellular, internet, cable and incumbent carriers connect for VoIP phone calls to and from the PSTN.

1. Class of Service from Carriers
2. SIP Trunking Service
3. VoIP at the Carrier: Session Border Controllers
4. VoIP to PSTN Interconnection at Toll Centers
5. Interconnection of PSTN Tandem Access Trunks at Toll Centers
6. Connecting Legacy PBX Trunks with Megaco and Gateways
7. Transmission Choice Comparison: MPLS VPN, SIP Trunking and SD-WAN
8. Selection of a VoIP Carrier

The VoIP section ends with a fill-in-the-blank Final Exam where you identify all the pieces of information required to make a VoIP phone call at each OSI Model layer. Don't panic! The class splits into groups to work on the open book exam together. It is a very helpful exercise to confirm BOOT CAMP knowledge learned to this point of the week.

Part 2: Security

Security and communications go hand-in-hand, so next we will go through a comprehensive overview of security including the threats to networks, systems and information, the measures that can be implemented, and best practices.

7. Security Risks and Measures

In this extensive section, you will receive a comprehensive overview of security. We will begin with an overview and the identification of valuable targets. We will cover phishing and extortion, and how data from "breaches" is used. Next, we will explore the risks and mitigation measures, and network security best practices, firewalls and ports; digital certificates, digital signatures, private and public key encryption, Internet VPNs, SD-WANs, trojans, viruses and exploits, plus Wi-Fi and VoIP security.

1. Security Areas, Policy and Risks
2. Objectives of Attackers
3. Phishing and Extortion
4. How Stolen Usernames and Passwords are used
5. Social Engineering
6. Network Security: Perimeters and Segmentation
7. Packet Filtering vs. Packet Forwarding
8. Port Filtering and Open Ports
9. Firewalls and Firewall Proxies
10. Stateful Packet Inspection
11. Public and Private Key Encryption
12. Passwords, Authentication and Digital Signatures
13. Digital Certificates, SSL and TLS
14. Wi-Fi Security, WPA2
15. IP VPNs
16. SD-WAN
17. Anonymizer VPN Service
18. Country-Spoofing VPN Service
19. Viruses
20. Spyware and Trojan Horses
21. Exploits, Zero-Day Exploits, National Vulnerability Database
22. Security for VoIP

Part 3: 5G and IoT

The course winds up with 5G wireless and IoT technologies. The Internet of Things allows everything from self-driving trucks to human brain implants to toasters to be online.

8. 5G: New Radio and New Spectrum

In this chapter, you will learn about the latest developments in the deployment of 5G wireless, the next generation of wireless. You will learn how a 40% increase of bits per second per Hz is an immediate benefit of 5G, plus support for massive MIMO, and ultra-broadband millimeter wave applications in the longer term. We will understand the 5G design goals, review the spectrum allocations for New Radio, and finish with reviewing the chip which enables the initial wave of 5G smartphones.

1. More Bits Per Second: 5G's Immediate Impact
2. 5G Use Cases and Design Goals
3. New Spectrum Allocations: New Radio
4. Millimeter-Wave Bands
5. Massive MIMO
6. Qualcomm Snapdragon X55 Chip: 5G Consumer Device Enabler

9. The Internet of Things

We will start by understanding exactly what IoT means, the Things and what they could be and how they would communicate. We finish Course 130 and BOOT CAMP by providing examples of Internet of Things, LPWA (Low Power Wide Area) and 5G applications like optimizing traffic flow, ultra-low-power tracking, metering and monitoring parking in Smart Cities, and platooning cars into road trains on highways.