Understanding VoIP 2

Understanding VoIP 2
Author: Eric Coll
Publisher:
Total Pages:
Release: 2007
Genre:
ISBN:

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Beyond VoIP Protocols

Beyond VoIP Protocols
Author: Olivier Hersent
Publisher: John Wiley & Sons
Total Pages: 296
Release: 2005-03-04
Genre: Technology & Engineering
ISBN: 9780470023624

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In 1999-2000, VoIP (Voice-over-IP) telephony was one of the most successful buzzwords of the telecom bubble era. However, in 2001-2003, VoIP faced a very tough reality check. Now, manufacturers and service providers are drawing on what they have learnt from past experience in order to prepare to participate in the next major challenge faced by the telecommunications industry. This book offers a comprehensive overview of the issues to solve in order to deploy global revenue-generating effective "multimedia" services. Drawing on extensive research and practical deployment experience in VoIP, the authors provide essential advice for those seeking to design and implement a post-bubble VoIP network. Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony Introduces the basics of speech coding and voice quality Demonstrates how quality of service may be built into the network and deals with dimensioning aspects, e.g. multipoint communications and how to model call seizures. Explores the potential of multicast to turn an IP backbone into an optimized broadcast medium Includes amply illustrated, state-of-the-art practical advice for formulating a complete deployment strategy A companion volume to "IP Telephony: Deploying VoIP Protocols", this book takes the reader a stage deeper into how to prepare the network and exploit VoIP technology to its full potential.

Packet Guide to Voice Over IP

Packet Guide to Voice Over IP
Author: Bruce Hartpence
Publisher: "O'Reilly Media, Inc."
Total Pages: 243
Release: 2013
Genre: Computers
ISBN: 1449339670

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"A system administrator's guide to VoIP technologies"--Cover.

VoIP Telephony and You

VoIP Telephony and You
Author: Rashmi Nanda
Publisher: BPB Publications
Total Pages: 325
Release: 2021-05-10
Genre: Computers
ISBN: 8194837731

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A Game Changer for WFH Practitioners Ê KEY FEATURESÊÊ _ Get to know the challenges and benefits of VoIP. _ Explore in-depth coverage on methodologies of the VoIP system. _ Includes the VoIP economic model, technology model, and in-practices. DESCRIPTIONÊ ÔVoIP Telephony and YouÕ introduces you to new and advanced ways of communicating over traditional telephony realms. Telcos use public internet private IPs for this long-distance voice communication in the Covid era. This book describes how VoIP encompasses the capability to encode and deliver content in real-time across digitized networks. In this book, you will learn about VoIP regulations, VoIP hardware and software, video conferencing servers, SWOT analysis of Telcos, switching technology. You will also learn about the TCP/IP, market, Economics model, business model, and technology models. You will learn how to eliminate echo by understanding the various interfaces of VoIP and a number of digital protocols.This book will also provide you with a solution to design and maintain communication systems that can be used reliably in the Covid-19 times. This book includes several best practices and security measures to secure conversations by use of surveillance methods and VoIP security provisions.ÊÊ WHAT YOU WILL LEARN _ Learn to establish a strong and robust digital communication for WFH business operations. _ Explore and evaluate buyingÊ decisions between cloud-based phones and other VoIP devices. _ Learn to optimize utilization of the VoIP telephony devices for audio and video conferencing. WHO THIS BOOK IS FORÊÊ This book is for aspiring and current technicians, network administrators, engineers, IT managers, VoIP integrators and solution providers, mobile experts, and WFH practitioners. TABLE OF CONTENTS 1. Introduction to Voice over Internet Protocol (VoIP) 2. VoIP Video Conferencing and Corona Virus 3. VoIPÕs Challenges and Benefits and VoIP MarketÕs Independent Providers 4. Overview of Systems-Level 5. Interfaces of VoIP Telephony 6. Assurance of Voice Quality for VoIP Networks 7. Implementation of VoIP Security 8. Functionality of a Data Router 9. Technical Description related to VoIP 10. VoIP Hardware and Software Components 11. Business Model and Market Model in relation with Internet Telephony 12. Technology, Economics and In-Practice to be concerned with IP telephony 13. VoIP to be Concluded

Understanding Session Border Controllers

Understanding Session Border Controllers
Author: Kaustubh Inamdar
Publisher: Cisco Press
Total Pages: 1980
Release: 2018-11-28
Genre: Computers
ISBN: 0134645065

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The complete guide to deploying and operating SBC solutions, Including Cisco Unified Border Element (CUBE) Enterprise and service provider networks are increasingly adopting SIP as the guiding protocol for session management, and require leveraging Session Border Controller (SBC) technology to enable this transition. Thousands of organizations have made the Cisco Unified Border Element (CUBE) their SBC technology of choice. Understanding Session Border Controllers gives network professionals and consultants a comprehensive guide to SBC theory, design, deployment, operation, security, troubleshooting, and more. Using CUBE-based examples, the authors offer insights that will be valuable to technical professionals using any SBC solution. The authors thoroughly cover native call control protocols, SBC behavior, and SBC’s benefits for topology abstraction, demarcation and security, media, and protocol interworking. They also present practical techniques and configurations for achieving interoperability with a wide variety of collaboration products and solutions. Evaluate key benefits of SBC solutions for security, management, and interoperability Master core concepts of SIP, H.323, DTMF, signaling interoperability, call routing, fax/modem over IP, security, media handling, and media/signal forking in the SBC context Compare SBC deployment scenarios, and optimize deployment for your environment Size and scale an SBC platform for your environment, prevent oversubscription of finite resources, and control cost through careful licensing Use SBCs as a back-to-back user agent (B2BUA) to interoperate between asymmetric VoIP networks Establish SIP trunking for PSTN access via SBCs Interoperate with call servers, proxies, fax servers, ITSPs, redirect servers, call recording servers, contact centers, and other devices Secure real-time communications over IP Mitigate security threats associated with complex SIP deployments Efficiently monitor and manage an SBC environment

Guide to Voice and Video over IP

Guide to Voice and Video over IP
Author: Lingfen Sun
Publisher: Springer Science & Business Media
Total Pages: 279
Release: 2013-01-12
Genre: Computers
ISBN: 144714905X

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This book presents a review of the latest advances in speech and video compression, computer networking protocols, the assessment and monitoring of VoIP quality, and next generation network architectures for multimedia services. The book also concludes with three case studies, each presenting easy-to-follow step-by-step instructions together with challenging hands-on exercises. Features: provides illustrative worked examples and end-of-chapter problems; examines speech and video compression techniques, together with speech and video compression standards; describes the media transport protocols RTP and RTCP, as well as the VoIP signalling protocols SIP and SDP; discusses the concepts of VoIP quality of service and quality of experience; reviews next-generation networks based on the IP multimedia subsystem and mobile VoIP; presents case studies on building a VoIP system based on Asterisk, setting up a mobile VoIP system based on Open IMS and Android mobile, and analysing VoIP protocols and quality.

VoIP Technology: Applications and Challenges

VoIP Technology: Applications and Challenges
Author: Tamal Chakraborty
Publisher: Springer
Total Pages: 265
Release: 2018-08-03
Genre: Technology & Engineering
ISBN: 3319955942

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This book offers an accessible introduction and practical guide to Voice over Internet Protocol (VoIP) technology, providing readers with the know-how to solve the problems encountered in applying VoIP technology across all types of network. It incorporates the latest research findings and brings readers up to date with the challenges that are faced by researchers developing novel applications of VoIP. The authors discuss the general architecture of VoIP technology, along with its application and relevance in conventional and emerging wireless communication networks, including Wireless Local Area Networks (WLANs), Worldwide Interoperability for Microwave Access (WiMAX), Long Term Evolution (LTE) and Cognitive Radio Networks. The book also includes Quality of service (QoS) studies under dynamic and unpredictable network conditions, which examine the reliability of both legacy systems And the upcoming pervasive computing systems. Further, it explains how the heuristic-based learning algorithms that are used in VoIP communications may help develop today’s technology in the area of autonomous systems. This book is a valuable source of information for academics and researchers, as it provides state-of-theart research in VoIP technology. It is also of interest to network designers, application architects, and service providers looking for a coherent understanding of VoIP across a wide range of devices, network applications and user categories.

VoIP and Unified Communications

VoIP and Unified Communications
Author: William A. Flanagan
Publisher: John Wiley & Sons
Total Pages: 322
Release: 2012-02-27
Genre: Technology & Engineering
ISBN: 1118166035

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Translates technical jargon into practical business communications solutions This book takes readers from traditional voice, fax, video, and data services delivered via separate platforms to a single, unified platform delivering all of these services seamlessly via the Internet. With its clear, jargon-free explanations, the author enables all readers to better understand and assess the growing number of voice over Internet protocol (VoIP) and unified communications (UC) products and services that are available for businesses. VoIP and Unified Communications is based on the author's careful review and synthesis of more than 7,000 pages of published standards as well as a broad range of datasheets, websites, white papers, and webinars. It begins with an introduction to IP technology and then covers such topics as: Packet transmission and switching VoIP signaling and call processing How VoIP and UC are defining the future Interconnections with global services Network management for VoIP and UC This book features a complete chapter dedicated to cost analyses and payback calculations, enabling readers to accurately determine the short- and long-term financial impact of migrating to various VoIP and UC products and services. There's also a chapter detailing major IP systems hardware and software. Throughout the book, diagrams illustrate how various VoIP and UC components and systems work. In addition, the author highlights potential problems and threats to UC services, steering readers away from common pitfalls. Concise and to the point, this text enables readers—from novices to experienced engineers and technical managers—to understand how VoIP and UC really work so that everyone can confidently deal with network engineers, data center gurus, and top management.

Securing VoIP Networks

Securing VoIP Networks
Author: Peter Thermos
Publisher: Pearson Education
Total Pages: 605
Release: 2007-08-01
Genre: Computers
ISBN: 0132702304

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In Securing VoIP Networks, two leading experts systematically review the security risks and vulnerabilities associated with VoIP networks and offer proven, detailed recommendations for securing them. Drawing on case studies from their own fieldwork, the authors address VoIP security from the perspective of real-world network implementers, managers, and security specialists. The authors identify key threats to VoIP networks, including eavesdropping, unauthorized access, denial of service, masquerading, and fraud; and review vulnerabilities in protocol design, network architecture, software, and system configuration that place networks at risk. They discuss the advantages and tradeoffs associated with protection mechanisms built into SIP, SRTP, and other VoIP protocols; and review key management solutions such as MIKEY and ZRTP. Next, they present a complete security framework for enterprise VoIP networks, and provide detailed architectural guidance for both service providers and enterprise users. 1 Introduction 2 VoIP Architectures and Protocols 3 Threats and Attacks 4 VoIP Vulnerabilites 5 Signaling Protection Mechanisms 6 Media Protection Mechanisms 7 Key Management Mechanisms 8 VoIP and Network Security Controls 9 A Security Framework for Enterprise VoIP Networks 10 Provider Architectures and Security 11 Enterprise Architectures and Security

Voice Over IP Fundamentals

Voice Over IP Fundamentals
Author: Jonathan Davidson
Publisher: Cisco Press
Total Pages: 404
Release: 2000
Genre: Computer network protocols
ISBN: 9781578701681

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A systematic approach to understanding the basics of Voice over IP Understand the basics of PSTN services and IP signaling protocols, including SS7 Learn how VoIP can run the same applications as the existing telephony system, but in a more cost-efficient and scalable manner Delve into such VoIP topics as jitter, latency, packet loss, codecs, quality of service tools, and mean opinion scores Learn about the functional components involved in using Cisco gateways to deploy VoIP networks Voice over IP (VoIP), which integrates voice and data transmission, is quickly becoming an important factor in network communications. It promises lower operational costs, greater flexibility, and a variety of enhanced applications.Voice over IP Fundamentalsprovides a thorough introduction to this new technology to help experts in both the data and telephone industries plan for the new networks. You will learn how the telephony infrastructure was built and how it works today, the major concepts concerning voice and data networking, transmission of voice over data, and IP signaling protocols used to interwork with current telephony systems. The authors cover various benefits and applications of VoIP and how to ensure good voice quality in your network. This book is part of the Networking Technology Series from Cisco Press, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.