Course benefits
All IT staff must now have a good appreciation of voice technologies in order to meet the needs of their user base. This is increasingly so with the convergence of voice and data networks, the realisation of computer-telephony integration (CTI), the emergence of IP-based telephony and the move to multimedia communications.
This unique "Fast Track" course provides an essential introduction to current and emerging voice technologies. The course presents the information you need to understand voice and telephony terminology, and to work more effectively in this area of convergence.
Who should attend?
All personnel who will be planning, implementing, supporting or managing computer networks, or telephone services.
Pre-requisites
Course 301: Intro to Datacomms and Networking, or equivalent experience in datacomms or networking, is a pre-requisite for this course.
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Course 381: Content
Data and Telecommunications Integration
LANs, intranets, data access,
E-mail, EDI, E-commerce
PABXs, voice mail, ACD and other voice technologies
Integration: workgroup computing, video conferencing, multimedia
Telephony Fundamentals
How telephones work
Analogue vs. digital signals
Conversion of analogue signals to digital
Switching principles
Data Communications Fundamentals
The OSI 7-layer model
DTE and DCE
CSU/DSU, NTU
Circuit-switched and packet-switched networks
Wide area data networks
Bridging and routing
Network Services
Public telephone network
ISDN: PRI, BRI
Private telephone/data networks
Cellular networks
Cable networks
Transmission Fundamentals
Analogue and digital channels
Voice digitisation
Codes, modulation and bandwidth
Bps versus Baud
Media options and selection
Switching Technologies
Space division switching
Time division switching
Packet switching
Switch design formats
Multiplexing Techniques
Time Division Multiplexing (TDM)
Inverse multiplexing, bonding
Statistical Time Division (STDM)
Frequency Division Multiplexing (FDM)
Network Planning
Determining your network requirements
Measuring network traffic
CCSs, Erlangs, BHCAs
Forecasting network growth
Selecting Network Services
Plain Telephone Services (POTS)
PABX services, systems and features
CENTREX services and features
Automatic Call Distribution
Cellular, PCS, DECT
Other network services
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Telephony Programming Interfaces (APIs)
TAPI , TSAPI, SCSA
Important Computer-Telephony Terminology and Standards
Channel associated signalling:
E&M, MF, RZ
Common Channel Signalling: SS7
Telephone network routing: E163, 164
Data network routing: X.121, DNICs
Analogue channel noise:
dBrnc, pWp
Analogue: echo, singing, delay distortion
Digital: distortion, jitter, BER
Digital channel error detection and error correction
Network Carriers
LECs, LATAs, IECs
PTTs, PTOs
Private networks and Bypass
Network Signalling and Routing
Leased and Private Circuits
Voice band: modems, 2 wire, 4 wire
56k, 64k bit/s, "Kilostream"
T1/E1, "Megastream"
CSU/DSU
Fractional T1, T3/E3
SONET/SDH
International services
Dial-Up Network Standards
EIA-232, V.24, V.35
V.22, V.22bis, V.32, V.32bis, V.34
V.42, V.42bis, V.54
Sharing Network Services
Voice over data channels
The role of the Internet
Dynamic reallocation
Employing ATM
Compression Techniques
Speech: ADPCM, SBADPCM, CELP, DSI
Data: V.42bis, MNP, LZW
Fax: Huffman and MMR codes
Packet-Switched Data Services
Frame Relay
Link service requirements
Speed, CIR and congestion
Logical channels
SVCs and PVCs
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