Voiceover IP: Protocols and Technical Hurdles

Voiceover IP: Protocols and Technical Hurdles

Mahbub Hassan (University of New South Wales, Australia) and Sanjay Jha (University of New South Wales, Australia)
Copyright: © 2002 |Pages: 21
DOI: 10.4018/978-1-930708-17-4.ch008
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As the name suggests, voice over Internet Protocol (VoIP) refers to the technology that allows transmission of voice over IP networks. Using VoIP, we can make telephone calls over the Internet or any IP-based corporate networks. With VoIP in place, the Internet does not remain a data-only network; it becomes a telephone network as well. So, what is the motivation for VoIP? There are several appealing reasons why we want this technology. The most compelling reason behind the emergence of this technology is the enormous cost savings through integration of both voice and data, two large revenue-making media for telecommunication companies, over the same communication infrastructure. The other major motivation for VoIP is the widespread adoption of IP platform. Today IP is a well-entrenched technology which is deployed in servers, routers, desktop PCs, laptops, and in many hand-held mobile devices, such as palmtops and PDAs. If voice signals could be transported over IP, then voice could be delivered to all these devices, making these devices much more useful than they already are. This chapter discusses several aspects of VoIP: (1) Advanced applications powered by VoIP, (2) the technical challenges and solutions for making VoIP a reality, (3) various VoIP configurations, and (4) the protocols and standards for VoIP. We conclude the chapter by discussing the future of VoIP.

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Table of Contents
Vasilis Theoharakis , Dimitrios N. Serpanos
Chapter 1
Vasilios A. Siris
In this chapter we give the motivation and basic concepts of the OSI reference model, discuss its seven-layer architecture, the communication... Sample PDF
The OSI Model and Switching
Chapter 2
Mike Fisk
As computer networks, specifically the Internet, become more and more integral to business and society, the performance and availability of services... Sample PDF
Network Service Availability and Performance
Chapter 3
Dimitrios Pendarakis, Subir Biswas
In this chapter we first present a brief overview of the technologies that have enabled the spectacular growth in optical networking. Next, we... Sample PDF
Management and Control of Intelligent Optical Networks
Chapter 4
Cam Cullen
With the availability of so many high-density, wire-speed Layer 3 switches, why would a network administrator choose to implement Virtual LANs... Sample PDF
Virtual Local Area Networks
Chapter 5
IP Switching and MPLS  (pages 61-87)
S. Manikantan
The growth of the Internet and its widespread usage has lead to greater demands being made on the industry to provide faster and better solutions.... Sample PDF
IP Switching and MPLS
Chapter 6
Web Switching  (pages 86-104)
Vishal Sharma, Rakhi Sharma
Web switching may be viewed as an optimized combination of networking functions, such as load balancing, bandwidth and traffic management, cache... Sample PDF
Web Switching
Chapter 7
Luiz A. DaSilva
Today’s networks support applications that deliver text, audio, images and video, often in real time and with a high degree of interactivity, using... Sample PDF
Multilayered Quality of Service
Chapter 8
Mahbub Hassan, Sanjay Jha
As the name suggests, voice over Internet Protocol (VoIP) refers to the technology that allows transmission of voice over IP networks. Using VoIP... Sample PDF
Voiceover IP: Protocols and Technical Hurdles
Chapter 9
Bhumip Khasnabish
Traditionally, real-time voice communications–both within and outside of corporations (enterprises)—are achieved using public domain... Sample PDF
Voiceover Internet Protocal (VoIP): Evaluation of Technologies for Deployment
Chapter 10
Christine Perey
Historically, interactive video has been reserved for circuit-switched networks (e.g., ISDN) using the H.320 standard protocol for video signaling... Sample PDF
Interactive Video on Enterprise Networks
Chapter 11
Bhumip Khasnabish
This chapter along with the additional resources given in the references will support the usage of SAN technologies in enterprises. The first half... Sample PDF
Emerging Enterprise Storage Systems: Storage or System Area Networks (SANs)
Chapter 12
S. Raj Rajagopalan
Security is one of the most pressing and expensive problems in the management of modern enterprise networks. The objective of this chapter is to... Sample PDF
Managing Security in Modern Enterprise Networks
Chapter 13
Web Caching: A Survey  (pages 234-248)
Antonis Danalis, Evangelos Markatos
World Wide Web traffic increases at exponential rates saturating network links and web servers. By replicating popular web pages in strategic places... Sample PDF
Web Caching: A Survey
Chapter 14
Tony Mancill
LinuxTM has made a lot of noise in the media recently, but wide-scale corporate adoption has been cautious. This chapter introduces the reader to... Sample PDF
Linux Systems as Network Infrastructure Components
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