Digital Telephony and Network Integration

Author: Bernhard E. Keiser
Publisher: Springer Science & Business Media
ISBN: 9401571775
Format: PDF, Mobi
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What is "digital telephony"? To the authors, the term digital telephony de notes the technology used to provide a completely digital point-to-point voice communication system from end to end. This implies the use of digital technol ogy from one end instrument through the transmission facilities and switching centers to another end instrument. Digital telephony has become possible only because of the recent and ongoing surge of semiconductor developments allowing microminiaturization and high reliability along with reduced costs. This book deals with both the future and the present. Thus, the first chapter is entitled, "A Network in Transition." As baselines, Chapters 2, 3, and 10 provide the reader with the present status of telephone technology in terms of voice digitization as well as switching principles. The book is an outgrowth of the authors' continuing engineering education course, "Digital Telephony," which they have taught since January, 1980, to attendees from business, industry, government, common carriers, and tele phony equipment manufacturers. These attendees come from a wide variety of educational backgrounds. but generally have the equivalent of at least a bachelor's degree in electrical engineering. The book has been written to provide both the engineering student and the practicing engineer a working knowledge of the principles of present and future voice communication systems based upon the use of the public switched network. Problems or discussion questions have been included at the ends of the chapters to facilitate the book's use as a senior level or first year graduate level course text.

Digital Telephony Over Cable

Author: D. R. Evans
Publisher: Addison-Wesley Professional
ISBN: 9780201728279
Format: PDF
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A guide to PacketCable: integrating video, broadband Internet and telephony on coax. It covers PacketCable architecture, conponents, key implementation issues, call signalling, provisioning, billing, interoperability, and QoS.

Integrating Voice and Data Networks

Author: Scott Keagy
Publisher: Cisco Press
ISBN: 1578701961
Format: PDF, ePub, Docs
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Voice/Data Integration on Cisco Networks is both a conceptual reference and a practical how-to book that bridges the gap between existing telephony networks and the new world of packetized voice over data networks. Technologies are explained in a context that gives the reader a holistic understanding of voice/data integration. Reader can then follow a complete process to design and implement a variety of network scenarios, leveraging the author's experience with real voice/data networks. The audio accompaniment on CD-ROM will be an excellent companion to demonstrate the expected voice quality using different voice/data networking scenarios. This will allow professionals in the field to demonstrate different sound quality levels to customers.

Understanding Telephone Electronics

Author: Joseph Carr
Publisher: Elsevier
ISBN: 9780080520032
Format: PDF, ePub, Docs
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Throughout its history, Understanding Telephone Electronics has been, by far, one of the most popular books on telecommunication electronics in the trade, electronic distribution, and educational markets because of its very simple, direct approach to the technology. In keeping with the distinguished tradition of its predecessors, Understanding Telephone Electronics, Fourth Edition covers conventional telephone fundamentals, including both analog and modern digital communication techniques, and provides basic information on the functions of each telephone system component, how electronic circuits generate dial tones, and how the latest digital transmission techniques work. This new edition of Stephen Bigelow's well-known, widely used text on telephone electronics offers comprehensive coverage of the latest developments in fiber optic technology, the convergence of telecommunications, cable-TV and Internet services, and CTI (computer telephony integration). The authors have made extensive revisions in these and other essential areas, such as business systems, voice mail, phone networking, enhanced services, satellite communications, wireless paging systems, digital communications, and much more to ensure that topics covered are current with the most recent advances in technology. The original Understanding Telephone Electronics has been a "gold standard" reference and training staple for years. Likewise, Understanding Telephone Electronics, Fourth Edition will serve as an essential and invaluable resource for technicians, engineers, students at major universities and corporations, and anyone with an enthusiasm for telecommunication electronics. Provides comprehensive coverage of telephone system functions and the role of the Internet in telephony Updates encompass the trends and advances of the booming telecommunications field, with new chapters on fiber optic technology and the Internet

Wi Fi Telephony

Author: Praphul Chandra
Publisher: Elsevier
ISBN: 9780080521695
Format: PDF, ePub, Docs
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Wi-Fi telephony is the latest, most cost effective, and clearest way of carrying voice data wirelessly. The great news is that it can be integrated seamlessly into the same infrastructures as currently used for computer and telephone data.The digital quality is far above current cellular technologies. This book will be among the first to discuss Session Initiation Protocol (SIP), Quality of Service (QoS), and interoperability in connection with Wi-Fi telephony. Security challenges are also presented and solved along these malleable wireless boundaries. In short, this book provides all the information necessary for effective, reliable, crystal clear Wi-Fi telephony service and implementation. *Using current telephone and computer infrastructure this technology can be implemented at low cost *The importance of Quality of Service (QoS) and security of Wi-Fi telephony is considered *Enhances the clarity of a call beyond a basic cellular phone using digital data transfer

SPC Digital Telephone Exchanges

Author: Felix Redmill
Publisher: Peter Peregrinus Limited
ISBN: 9780863412981
Format: PDF, Mobi
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This detailed reference work provides an introduction to modern telephone electronic exchanges and network technology. It has been revised and updated to include a new chapter on intelligent networks.

Internet Telephony

Author: Lee W. McKnight
Publisher: MIT Press
ISBN: 9780262133852
Format: PDF, Mobi
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This book explores issues posed by convergent voice and data networks, and considers future scenarios as Internet telephony continues to alter the communications landscape.

TELECOMMUNICATION SWITCHING SYSTEMS AND NETWORKS

Author: THIAGARAJAN VISWANATHAN
Publisher: PHI Learning Pvt. Ltd.
ISBN: 8120350839
Format: PDF, ePub, Docs
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The rapid expansion of the field of telecommunication networks call for a new edition to assist the readers with development of understanding towards new telecommunication technologies. This well-accepted textbook, now in its Second Edition, is designed for the final-year undergraduate and the first-year graduate students in electronics and communication engineering and allied subjects. It fulfils the need for a suitable textbook in the area of telecommunication switching systems and networks. The text covers, in a single volume, both switching systems and telecommunications networks. The book begins with a brief discussion on the evolution of telecommunication. It then goes on to give a classification scheme for switching systems, and describes the basic components of a switching system and the fundamental concepts of network structures. It provides an in-depth coverage of fibre optic communication system and the traffic engineering concepts. A distinguishing feature of the book is the thorough treatment of the most important telecommunication networks, viz. the public switched telephone network (PSTN), the public data network (PDN), and the integrated services digital network (ISDN). Worked-out examples and exercises would be of considerable assistance to the reader in understanding all aspects of telecommunication engineering. NEW TO THIS EDITION • Sections on SONET, WDM, and DWDM in Chapter 7 • New section on Broadband ISDN and related technologies in Chapter 11 • A new chapter on Mobile Communication which covers almost all aspects of the cell planning and mobile channels • A new chapter on Satellite Communication which gives sufficient introductory knowledge of the satellites, satellite orbits, and orbital theory • Satellite link budget analysis (with examples) in Chapter 13.

Digital Communication

Author: John R. Barry
Publisher: Springer Science & Business Media
ISBN: 1461502276
Format: PDF, ePub, Docs
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This book concerns digital communication. Specifically, we treat the transport of bit streams from one geographical location to another over various physical media, such as wire pairs, coaxial cable, optical fiber, and radio. We also treat multiple-access channels, where there are potentially multiple transmitters and receivers sharing a common medium. Ten years have elapsed since the Second Edition, and there have been remarkable advances in wireless communication, including cellular telephony and wireless local-area networks. This Third Edition expands treatment of communication theories underlying wireless, and especially advanced techniques involving multiple antennas, which tum the traditional single-input single-output channel into a multiple-input multiple-output (MIMO) channel. This is more than a trivial advance, as it stimulates many advanced techniques such as adaptive antennas and coding techniques that take advantage of space as well as time. This is reflected in the addition of two new chapters, one on the theory of MIMO channels, and the other on diversity techniques for mitigating fading. The field of error-control coding has similarly undergone tremendous changes in the past decade, brought on by the invention of turbo codes in 1993 and the subsequent rediscovery of Gallager's low-density parity-check codes. Our treatment of error-control coding has been rewritten to reflect the current state of the art. Other materials have been reorganized and reworked, and three chapters from the previous edition have been moved to the book's Web site to make room.

IP Telephony

Author: Bill Douskalis
Publisher: Prentice Hall
ISBN: 9780130141187
Format: PDF, Docs
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Now that virtually every leading telecommunications service provider has committed to delivering IP-based telephony services, communications professionals face the enormous challenge of implementation. This hands-on guide brings together today's best known answers and solutions for delivering VolP services with the quality customers deman. No other book covers the combined issues of protocol signaling, media transport methodology, reference topological considerations and voice quality testing in service offerings. No matter what your role in delivering Voice Over IP (VoIP) services, IP Telephony delivers the specifics you need to speed deployment, improve reliability, ensure quality, and simplify troubleshooting. Precise, thorough, and based firmly in the real-world, it is simply indispensable. The accompanying CD-ROM contains an extensive library of IP telephony-related RFCs, pertinent white papers and application notes that include real-world IP Telephony measurement examples.