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Voice Over IP Introduction |
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Trends in Voice & Data Convergence |
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The Public Switched Telephone Network (PSTN) |
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» Evolution of Voice Networks |
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» Circuit Vs Packet Networks |
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» Signaling System Number 7 (SS7) |
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» Customer expectations |
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» Real Time Vs. Non Real Time networks |
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» Latency, Jitter defined |
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The Voice Over IP Business Case |
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» Innovative Services |
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» New applications |
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» ROI |
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Emerging Next Generation Carriers |
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Incumbent carriers |
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Next Generation carriers |
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Internet telephony service providers |
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Introduction to Voice Over IP in the Enterprise |
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Voice Over other Packet technologies |
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» Voice over Frame Relay |
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» Voice over ATM |
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Emerging Voice transports |
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VoDSL |
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Voice over cable modem |
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Networking Protocols |
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Introduction to TCP/IP |
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» IP Addressing |
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» TCP/UDP overview |
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» DNS & DHCP operation in modern networks |
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Routing in IP Networks |
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» Overview |
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» Routing protocols |
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» Sample LAN & WAN topologies |
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Call Control in IP Networks |
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» H.323: Standards for Multimedia Communication over IP Networks |
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» Call Setup Using H.245 and H.225 |
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» Media Gateway Control (MEGACO) |
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» Session Initiation Protocol (SIP) |
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» SIP Addressing and Session Control |
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» Comparisons on H.323, SIP, and MEGACO |
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QOS related networking protocols |
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» Resource Reservation Protocol (RSVP) |
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» Differentiated Services (DiffServ) |
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» Multiprotocol Label Switching |
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» Real-Time Transport Protocol (RTP) |
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» RTP Control Protocol (RTCP) |
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Examples of Real World LAN/WAN topologies with Voice Over IP services |
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Voice Encoding Standards |
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Overview of encoding standards used for Voice Over |
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G.711 Pulse Code Modulation (PCM) |
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Linear Predictive Coders (LPCs) |
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Code-Excited Linear Predictive (CELP) Coders |
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G.723.1 and G.729 |
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VoIP issues |
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Jitter and Delay in Voice over IP |
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Echo Cancellation |
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Packet Size |
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Gateway for Voice-to-IP and IP-to-voice conversions |
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Real World Implementation Examples |
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Carrier implementations of VoIP |
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Enterprise implementations |
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Vendor offerings: Overview of Cisco’s AVVID architecture & equipment |
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VoIP in the Enterprise Call Center |
rapidly evolving away from the traditional TDM circuit switched infrastructure towards converged packet based delivery models. In the course students develop a complete understanding of the technologies, standards and advanced applications that are driving the deployment of Voice Over IP equipment and services.