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strong VoIP background, you could skim the first two chapters (which cover foundational VoIP topics, including an introduction to VoIP and elements of a VoIP network) and focus on the remaining seven chapters, which address more advanced VoIP concepts.
1. Introduction. Voice over Internet Protocol (VoIP) is a technology that makes it possible for users to make telephone calls over the internet or intranet networks. The technology does not use the traditional Public Switched Telephone Network (PSTN); instead calls are made over an internet protocol data network.
Voice over Internet Protocol (VoIP) is a form of communication that allows you to make phone calls over a broadband internet connection instead of typical analog telephone lines. Basic VoIP access usually allows you to call others who are also receiving calls over the internet.
Some of the current protocols include SIP, IAX, H.323,MEGACO, and MGCP. Let’s look at some details of the first three, as they may be the ones you are most likely to encounter. SIP, or Session Initiation Protocol, is the most commonly used VoIP protocol and was developed by the Internet Engineering Task Force (IETF).
It describes VoIP fundamentals and network architecture, then explains key VoIP protocols like SIP, RTP, and their components. The document also compares SIP to H.323, illustrates SIP message types and call flows, and discusses SIP trunking.
VoIP is a group of specialized software elements, each performing a specific task. Every phone call (whether VoIP or non-VoIP) has two basic components, each using an allotted amount of bandwidth to do its specific job. These call components are. The voice portion: Also called the media of the call or the payload.
VOICE OVER INTERNET PROTOCOL OVERVIEW. INTRODUCTION. Everyone is talking about it, and you might even be doing it from time to time. What is it? Voice Over Internet Protocol (VoIP). Using the telephone over the Internet has become more popular and more important than ever.
