Introduction to Telephones & Telephone Systems

Introduction to Telephones & Telephone Systems PDF

Author: A. Michael Noll

Publisher: Artech House Publishers

Published: 1991

Total Pages: 268

ISBN-13:

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The second edition contains updated and expanded chapters and many new illustrations. It places increased emphasis on digital technology and provides a new chapter on services.

Asterisk

Asterisk PDF

Author: Jim Van Meggelen

Publisher: "O'Reilly Media, Inc."

Published: 2007-08-28

Total Pages: 602

ISBN-13: 0596510489

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Provides information on Asterisk, an open source telephony application.

Cellular Telephones and Pagers

Cellular Telephones and Pagers PDF

Author: Stephen Gibson

Publisher: Newnes

Published: 1997

Total Pages: 177

ISBN-13: 0750696834

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With Cellular Telephones & Pagers, Stephen Gibson provides an overview of the basics of mobile telephone and paging technology and related issues.

Principles of Modern Communications Technology

Principles of Modern Communications Technology PDF

Author: A. Michael Noll

Publisher: Artech House

Published: 2001

Total Pages: 296

ISBN-13: 1580532845

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Here's an easy-to-comprehend book that gives you a complete introduction to communication technologies and systems, offering you a solid understanding of the fundamentals, history and future direction of this ever-changing field. Geared towards non-technical business professionals and students, this unique resource integrates human physiology and factors, important inventors and business people, and basic technological principles to explain the key concepts and developments of modern communications.

Introduction to Mobile Telephone Systems

Introduction to Mobile Telephone Systems PDF

Author: Lawrence Harte

Publisher: Althos Incorporated

Published: 2003-10-01

Total Pages: 52

ISBN-13: 9780974694320

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This book explains the different types of mobile telephone technologies and systems from 1st generation analog to 3rd generation digital broadband. It describes the basics of how they operate, the different types of wireless voice, data and information services, key commercial systems, and typical revenues/costs of these services. While new competition has provided lower cost services for consumers, it means a rapidly changing marketplace for the wireless industry. Some of these changes include the increase in mobile telephone customers from 300 million to 1.3 billion customers within 5 years and the shift of focus from adding new voice customers to providing advanced services such as data transfer, web browsing, and software downloads. The types of services that mobile telephone systems can offer vary depending on the technologies, devices, and the services selected by customers. This book discusses the different types of systems including 1st, 2nd, 2.5, and third generation wireless (3G). Some of the most important topics featured are: - Simple descriptions and diagrams of analog and digital mobile telephone systems- The key types of wireless services and which types of mobile telephone systems can offer them- The approximate usage fees for mobile telephone services- The market numbers and trends for mobile subscribers- How each mobile telephone system continues to change to offer new services and better compete against other mobile telephone technologies.- What are the key applications driving the mobile telephone market growth.- What are the next steps in mobile telephone systems such as 4G