Introduction and Overview
Convergence fundamentals
- Why convergence matters
- The importance of Quality of Service (QoS)
Key components of a complete network
- Leased and switched networks
- Public and private networks
- Circuit- and packet-switching
Comparing Transmission Media
Selecting the medium
- Unshielded Twisted Pair (UTP) cables
- Fiber optics
- Applying wireless solutions: VHF, UHF, microwave
Applying analog and digital techniques
- Bandwidth, frequency response, loss and dB
- Pulse code modulation (PCM)
T1/E1 circuits and equipment
- Time division multiplexing for efficiency
- Employing leased lines and fractional services
Comparing SONET, SDH and PDH
- Exploiting capacity of copper and fiber
- Manageability and scalability
- SONET/SDH rings
Mastering Basic Telephony
The local loop
- Wired pair: tip and ring
- Bandwidth and electrical power
Telephone switches: LXs and PBXs
- Lines and trunks
- Switch matrices and controllers
- Comparing PBX and Centrex
Designing a telephone network
- Calculating blocking probability
- Measuring traffic in Erlangs
- Sizing PBX trunk groups
Modern Telephony and Video Conferencing
Basic and primary rate ISDN
- Making use of B-channels and D-channels
- Voice and data conferencing applications
Comparing cellular techniques
- GSM vs. CDMA
- Data services: GPRS, EDGE, EV-DO
- Evolution to 3G and UMTS
| Voice over IP (VoIP)
Choosing a digital method
- Mean opinion score for voice quality
- ADPCM, LPC, CELP
- G.711, G.72x
- Video codecs: H.264, MPEG
Transmission-level convergence
- Motivations for VoIP
- The five architectures
- Following a VoIP call
Elements of VoIP
- IP telecasts and softphones
- RTP for voice and video
- Competing standards: H.323 and SIP
VoIP challenges
- Quality and reliability
- Migration strategies
- SLAs and outsourcing
Signaling
Channel-associated signaling
- DTMF on lines
- E&M on trunks
- Slot-16 and robbed-bit signaling
Applying common-channel signaling
- Benefits of common-channel signaling
- Q.931 ISDN call control
- SS7 trunk signaling
Deploying Data Communications Networks
A TCP/IP primer
- The TCP/IP protocol suite
- IP datagram service & addressing
- Routers, internets and intranets
- Adding QoS using RSVP and DiffServ
Applying Virtual Private Network (VPN) Technology
- Tunneling and encryption for security
- Performance challenges
Multiprotocol Label Switching (MPLS)
- Adding connections to IP internets
- Leveraging labels and switching for speed
- Label-switched paths (LSP)
- Label-switched routers (LSR)
Planning Voice/Data/Video Convergence
Transmission-level convergence
- xDSL and cable modems
- Cellular vs. WiMAX vs. Wi-Fi
Network-level convergence
- Challenges of QoS
- ATM vs. MPLS
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