Free Online Telecom, Datacom, Networking, Wireless, VoIP and SIP Course Lessons

Following are free course lessons from the Certified Telecommunications Network Specialist CTNS certification and Certified Telecommunications Analyst CTA certification, followed by lessons from the Certified VoIP Analyst CVA Certification and then the Certified Wireless Analyst CWA Certification.

These are full-length lessons from Teracom Training Institute.  Enjoy!

CTNS and CTA Certification Free Course Lessons

Course L2201 The PSTN
1. Course Introduction     watch now (free)
2. History of Telecommunications (USA and Canada)
3. The Public Switched Telephone Network (PSTN)
4. Analog Circuits and Sound
5. The Voiceband     watch now (free)
6. Plain Ordinary Telephone Service (POTS)
7. Signaling: Pulse Dialing and Dual Tone Multiple Frequency (DTMF)
8. Signaling System 7 (SS7)

Course 2206 Wireless Telecommunications
1. Course Introduction     watch now (free)
2. Mobile Network Components, Jargon and Basic Operation
3. Cellular Principles and AMPS (1G)
4. 2G: Digital Radio - Voice Communications
5. Digital Cellular: Data Communications
6. Spectrum-Sharing Technologies: FDMA, TDMA, CDMA, OFDM
7. 3G Cellular: CDMA     watch now (free)
8. 4G Mobile Cellular: LTE
9. 802.11 Wireless LANs - WiFi
10. Communication Satellites

Course 2211 Ethernet, LANs and VLANs
1. Course Introduction     watch now (free)
2. Bus Topology, Access Control, Broadcast Domains and MAC Addresses
3. Ethernet and 802.3
4. Evolution of Ethernet: 10BASE-2, 10BASE-T -> Gigabit
5. LAN Cables and TIA-568 Categories     watch now (free)
6. Bridging
7. LAN Switches
8. VLANs

Course 2212: The OSI Layers and Protocol Stacks
1. Course Introduction     watch now (free)
2. Open Systems
3. Protocols and Standards     watch now (free)
4. ISO OSI 7-Layer Reference Model
5. The Physical Layer: Fiber, Twisted Pair, Cable and Wireless
6. Data Link Layer: LANs and MAC Addresses
7. Network Layer: IP, MPLS, Packets and Routers
8. Transport Layer: Reliability, Ports and Sockets
9. Session Layer: SIP, POP and HTTP
10. Presentation Layer: ASCII, MIME, Compression, Encryption, Codecs
11. Application Layer: SMTP, HTML and English
12. Protocol Stacks: The FedEx Analogy
13. Protocol Headers: Babushka Dolls
14. Standards Organizations

Course 2213: IP Networks, Addresses and Routers
1. Course Introduction     watch now (free)
2. Review: Channelized Time-Division Multiplexing (TDM)
3. Statistical Time-Division Multiplexing: Bandwidth-on-Demand
4. Private Network: Bandwidth on Demand + Routing
5. Routers
6. IPv4 Addresses
8. Public and Private IPv4 Addresses
9. Network Address Translation     watch now (free)
10. IPv6 Overview
11. IPv6 Address Allocations and Assignment

Course 2214: MPLS and Carrier Networks
1. Course Introduction     watch now (free)
2. Carrier Packet Network Basics
3. Service Level Agreements
4. Virtual Circuits
5. X.25
6. Frame Relay
7. TCP/IP over Frame Relay
8. QoS Requirement for Voice over IP
9. ATM
10. MPLS
11. TCP/IP over MPLS     watch now (free)
12. Differentiated Classes of Service using MPLS
13. Integration and Convergence using MPLS
14. Managing Aggregates of Traffic with MPLS Label Stacking
15. MPLS Services vs. Internet Service

CVA Certification Course Free Lessons

Course 2221 Fundamentals of Voice over IP
1. The Big Picture (free - watch now)
2. Terminals
3. Voice in Packets
4. SIP and Soft Switches / SIP Servers / Call Managers
5. Media Servers: Video Servers
6. Gateways
7. LANs and WANs
8. Key VoIP Standards
9. Where All of This is Headed: IP Dial Tone

Course 2222 VoIP Architectures and Implementations
1. Intro + Internet Telephony: Computer-Computer VoIP over the Internet
2. Internet Telephony Example: Skype
3. Internet VoIP to POTS Landline e.g. Google Hangouts (free - watch now)
4. VSP Phone to Phone over Internet e.g. Vonage
5. VoIP Becomes The New POTS
6. VoIP at Carriers
7. VoIP-Enabled PBX and Migration Options
8. Premise Softswitch: PBX Replacement
9. Cloud Services and Hosted PBX: Softswitch as a Service (SaaS)
10. IP Centrex
11. Asterisk and Open-Source Softswitch Software
12. IP Phone Features and Uses

Course 2223 Softswitches, SIP, and VoIP Call Setup 
1 Intro + What SIP Is and What It Can Do (free - watch now)
2 SIP's Relationship to Other Protocols
3 SIP URIs: Telephone Numbers
4 Register: Update Your Location
5 INVITE: Dialing
6 Location Service: Finding the Far End
7 The SIP Trapezoid
8 SIP Messages and the Session Description Protocol
9 How SIP Relates to Softswitches and Call Managers

Course 2224 Voice Packetization, Codecs and Voice Quality
1 Voice Packetization
2 Measuring Voice Quality
3 Factors Affecting Voice Quality
4 Codecs: Voice Coding and Compression
5 Delay
6 Jitter
8 Protocol Stack: RTP, UDP, IP, MAC
9 Packet Loss and Sound Samples (free - watch now)
10 Tips for Maximizing Voice Quality

Course 2225 SIP Trunking & Carrier Connections
1 Introduction + Carrier-LEC Connection via DS0
2 Carrier-LEC VoIP Interconnection (free - watch now)
3 Session Border Controllers
4 Business -LEC PBX Trunks and Gateway
5 Softswitch Controlling the Gateway
6 SIP Trunking: Native VoIP Connections

Course 2226 IP Network Quality: CoS, QoS, MPLS and SLAs
1 Course Introduction + Virtual Circuit Technologies (free - watch now)
3 Differentiated Services (Diff-Serv)
4 Service Level Agreements, Meters, Markers, Shapers and Droppers
5 Interworking Diff-Serv and MPLS
6 Using 802.1P for QoS
7 Implementing CoS: Queuing Techniques

CWA Certification Course Free Lessons

Course 2231 Wireless Fundamentals
1. Radio Fundamentals (free - watch now)
2. Wireless Spectrum and Radio Bands
3. Analog Radio
4. Digital Radio: How Modems Work
5. Propagation, Penetration and Fading

Course 2232 Mobile Communications
1. Mobile Network Components and Operation (free - watch now)
2. Cellular
3. 1G: Analog Frequency-Division Multiple Access
4. Second Generation: Digital Cellular
5. Digital Cellular: Voice Communications
6. Internet Access via Cellular: "Data" Communications
7. 2G: TDMA (IS-136) Time-Division Multiple Access
8. 2G: TDMA (GSM) Time-Division Multiple Access
9. 2G: CDMA Code-Division Multiple Access
10. Spread Spectrum
11. CDMA Operation and Patents
12. 3G: CDMA 1X and UMTS
13. 4G: LTE
14. 4G: OFDM
15. Dynamic Assignment of Subcarriers
16. Spectrum-Sharing Roundup: FDMA, TDMA, CDMA, OFDM

Course 2233 Fixed Wireless
1. Infrared
2. Bluetooth (free - watch now)
3. WiFi: Wireless LANs
4. WiFi Security and WPA2
5. 802.16 WiMAX
6. Point-to-Point Microwave
7. Satellite

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