Hands-on VOIPObjectives Prerequisites Course Outline NL-1-0 The primary goal of this one (1) day training program is to provide the core knowledge and skills that relate to the various technologies that are evolving to allow end-to-end voice communication to be packetised for transmission over a digital network ostensibly designed for data communication. This is distinct from taking an analogue multimedia stream end-to-end over a digital network designed for voice communication. At the conclusion of this course attendees will be able to:
It is envisaged that the attendees to this program will have completed or be able to demonstrate existing knowledge to that presented in the Hands-on TCP/IP class. Introduction to Voice Over Packet From a big picture perspective the introduction describes the key drivers and enablers behind voice over packet implementation decisions. Some of the key terms, acronyms and abbreviations will also be introduced.
Packetising voice This module draws upon some of the basic fundamentals of the pre-reading material and introduces the key attributes of the existing voice network. It starts by investigating what happens when a ‘normal’ voice conversation is established over the PSTN so that the key attributes of what makes this communication so successful to date can be highlighted. In particular the attributes of the various parameters that actually make the existing voice network work as it does and the considerations for replicating this in a data network are examined. It concludes with an examination of how voice is packetised.
Voice Over Frame Relay
Voice Over ATM
Voice Over IP - Standards So what are the 'standards' that vendors and end-users are relying on to make VoIP a reality? The module introduces the common functional components necessary to implement a VoIP solution and then proceeds to elaborate on how the standards have evolved. In particular the relationship between the various standards bodies and 'defacto' industry standards will be discussed i.e. NCS PacketCable etc. The module separates out the VoIP signalling, transport, gateway interface elements and the required data network tuning components.
VoIP Signalling Options This module elaborates on the three (3) predominant VoIP signalling options that can be found in the market today. The protocols will each be covered in depth and the basic protocol flows of how a VoIP call is established using the three different mechanisms will be investigated.
Media Transport This module explores the operation of the media transport protocols RTP and RTCP. How the media transport protocol works with respect to normal protocol flows is investigated.
Data Network Tuning This module explores the requirements for 'tuning' a data network to work within the bandwidth and delay constraints imposed by end-to-end voice communications. There are various protocols being deployed to support this capability are discussed.
Appendix A - Abbreviations and Acronyms Appendix B - VoIP References and Bibliography |