1. Overview of Telecommunications
Understand the major events in U.S. telecommunications, including the
AT&T infrastructure before and after divestiture, and the Telecom
Act.
Short history of telecommunications
Types of connections
Differentiating types of calling services
Divestiture of AT&T and equal access
Introduction to the Telecom Act of 1996
U.S. regulatory bodies
Standards
2. Call Processing
Explore telephone components, central office switches, the PSTN, and signaling
Components of the telephone
Local loop connection
Central office switch
Public Switched Telephone Network (PSTN)
Signaling over POTS
3. Technology Fundamentals
Examine communications methods and devices, how voice is transmitted, and the principles of multiplexing
Communications methods
Modulation/demodulation
Communications devices
Telephone
Codec
Modem
CSU/DSU
Electromagnetic spectrum
Types of media
Copper
Shielded/unshielded twisted pair
Coaxial cable
Fiber Optic
Multimode
Single mode
Wireless communications
System classes
Directional systems
Omnidirectional systems
Transmission impairments
Microwave communications
Intro to satellites
Geostationary
Low Earth Orbit (LEO)
Multiplexing
Frequency Division Multiplexing (FDM)
Time Division Multiplexing (TDM)
Wave Division Multiplexing (WDM)
4. Digital Access and Transport Systems
Learn how voice signals are converted to digital, digital access and cross-connect systems, and high-speed services
Converting a voice signal to digital
North American Digital Hierarchy (NADH)
DS0
DS1 (T1)
DS2
DS3
European hierarchy
E1
E2
E3
Digital Access and Cross-connect System (DACS)
Synchronous Optical Network (SONET)
SONET/SDH hierarchy rates
Concatenation - super rate payloads
Virtual tributaries
SONET topology
Integrated Services Digital Network (ISDN)
ISDN fundamentals
Interface types
Basic Rate Interface (BRI)
Primary Rate Interface (PRI)
Categories of equipment
Applications for ISDN
xDSL
Installation challenges
Asymmetrical bandwidth
Asymmetric DSL (ADSL) for voice and data
g.dmt
G.lite
High-Speed DSL (HDSL) symmetrical service
5. Customer Premises Equipment and Services
Comprehend PBX, Key systems, and ACDs. Understand Centrex and CTI
Customer telephone system types
Private Branch exchanges (PBXs)
Key systems
Hybrid system
Automatic Call Distributors (ACDs)
Computer Telephony Integration (CTI)
Interactive Voice Response (IVR)
Cabling, connectors and equipment (business environment)
Centrex service
Analog
Digital (ISDN)
6. Wireless Telecommunications
Examine the evolution of wireless technology, cellular networks, and air interfaces. Understand AMPS, GSM, and PCS
Components of a cellular network
Mobile Telephone Switching Office (MTSO)
Mobile subscriber units
Cell sites
Base station transceivers
Cellular antennas
Evolution of mobile telecommunications
Cellular telephony
Cellular concept - reusing frequencies
Cell clusters
Handoff between adjacent cells
Air interfaces
Frequency Division Multiple Access (FDMA)
Time Division Multiple Access (TDMA)
Code Division Multiple Access (CDMA)
Advanced Mobile Phone Service (AMPS)
Second generation wireless technology
Digital cellular
Global System for Mobile Communications (GSM)
Personal Communications Service (PCS)
Other wireless technologies
Cordless telephony
Fixed wireless access
Wireless local loop implementation
Wireless PBX implementation
7. The Future of Voice Telecommunications
Examine the technologies driving voice and data convergence. Explore
how voice and data is being carried over cable TV networks and how LECs
are deploying networks.
Migration from circuit to packet switching
Convergence of voice and data for enterprise networks
Voice over cable TV networks
Digitizing voice over DSL