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Enterprise Networks And Telephony

Author : Solange Ghernaouti-Helie
ISBN : 9781447115649
Genre : Business & Economics
File Size : 90. 97 MB
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A revised and updated translation of the French original, this work deals effectively with local area network technologies and management, offering a broad overview of enterprise telecommunication technologies. Also covered is computer telephony integration (CTI) through a presentation of the main technologies of the domain. A functional description of the main features of network operating systems is proposed and illustrated by Novell IntraNetWare and Windows NT examples, with special emphasis offered on business applications and management issues of these topics. The main interest of the book resides in the dual approach of enterprise networks, covering both technical and managerial elements, providing a global understanding of business applications and management of telecommunications to IT professionals and students. Concrete tools and methods are described, thus offering practical advice of immediate relevance.

Enabling Secure Ip Telephony In Enterprise Networks

Author : Brennen Emerick Reynolds
ISBN : UCAL:X66547
Genre :
File Size : 42. 38 MB
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Voip And Enhanced Ip Communications Services

Author : International Engineering Consortium
ISBN : 1931695296
Genre : Business & Economics
File Size : 38. 80 MB
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Focusing on the current forward momentum of IP applications and services, this practical resource offers a varied range of perspectives on the current status and future directions of IP communications.

High Speed Cisco Networks

Author : John R. Vacca
ISBN : 9781420000061
Genre : Computers
File Size : 33. 57 MB
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High-Speed Cisco Networks: Planning, Design, and Implementation covers LAN/WAN technology and its benefits. The book lays out Cisco's complete line of products and describes their features and best applications. It provides critical details on routers and servers, switches and hubs, security products, network management tools, ATM products, other services and programs, and Internetwork Operating Systems (IOS). Cisco's routers, hubs, and switches are the core of the Internet and today's high-speed networks. Armed with this independent evaluation, the reader can design high-speed networks that meet current needs and scale to future requirements with confidence.

Securing Cisco Ip Telephony Networks

Author : Akhil Behl
ISBN : 9780132731065
Genre : Computers
File Size : 78. 79 MB
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The real-world guide to securing Cisco-based IP telephony applications, devices, and networks Cisco IP telephony leverages converged networks to dramatically reduce TCO and improve ROI. However, its critical importance to business communications and deep integration with enterprise IP networks make it susceptible to attacks that legacy telecom systems did not face. Now, there’s a comprehensive guide to securing the IP telephony components that ride atop data network infrastructures–and thereby providing IP telephony services that are safer, more resilient, more stable, and more scalable. Securing Cisco IP Telephony Networks provides comprehensive, up-to-date details for securing Cisco IP telephony equipment, underlying infrastructure, and telephony applications. Drawing on ten years of experience, senior network consultant Akhil Behl offers a complete security framework for use in any Cisco IP telephony environment. You’ll find best practices and detailed configuration examples for securing Cisco Unified Communications Manager (CUCM), Cisco Unity/Unity Connection, Cisco Unified Presence, Cisco Voice Gateways, Cisco IP Telephony Endpoints, and many other Cisco IP Telephony applications. The book showcases easy-to-follow Cisco IP Telephony applications and network security-centric examples in every chapter. This guide is invaluable to every technical professional and IT decision-maker concerned with securing Cisco IP telephony networks, including network engineers, administrators, architects, managers, security analysts, IT directors, and consultants. Recognize vulnerabilities caused by IP network integration, as well as VoIP’s unique security requirements Discover how hackers target IP telephony networks and proactively protect against each facet of their attacks Implement a flexible, proven methodology for end-to-end Cisco IP Telephony security Use a layered (defense-in-depth) approach that builds on underlying network security design Secure CUCM, Cisco Unity/Unity Connection, CUPS, CUCM Express, and Cisco Unity Express platforms against internal and external threats Establish physical security, Layer 2 and Layer 3 security, and Cisco ASA-based perimeter security Complete coverage of Cisco IP Telephony encryption and authentication fundamentals Configure Cisco IOS Voice Gateways to help prevent toll fraud and deter attacks Secure Cisco Voice Gatekeepers and Cisco Unified Border Element (CUBE) against rogue endpoints and other attack vectors Secure Cisco IP telephony endpoints–Cisco Unified IP Phones (wired, wireless, and soft phone) from malicious insiders and external threats This IP communications book is part of the Cisco Press® Networking Technology Series. IP communications titles from Cisco Press help networking professionals understand voice and IP telephony technologies, plan and design converged networks, and implement network solutions for increased productivity.

Network Convergence

Author : Hu Hanrahan
ISBN : 9780470024423
Genre : Technology & Engineering
File Size : 34. 78 MB
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The present information age is enabled by telecommunications and information technology and the continued convergence of their services, technologies and business models. Within telecommunications, the historic separations between fixed networks, mobile telephone networks and data communications are diminishing. Similarly, information technology and enterprise communications show convergence with telecommunications. These synergies are captured in the concept of Next Generation Networks that result from evolution to new technologies, enabling new services and applications. Network Convergence creates a framework to aid the understanding of Next Generation Networks, their potential for supporting new and enhanced applications and their relationships with legacy networks. The book identifies and explains the concepts and principles underlying standards for networks, services and applications. Network Convergence: Gives comprehensive coverage of packet multimedia, enterprise networks, third generation mobile communications, OSA/Parlay and developments in fixed networks. Gives an integrated view of diverse information and communications systems and technology through a common NGN Framework. Delves into protocols, APIs and software processes for supporting services and applications in advanced networks. Discusses a variety of applications of telecommunications supporting IT and IT enhanced by communications. Follows developments in operations support systems standards and links these to next generation networks. Includes a wealth of examples, use cases, tables and illustrations that help reinforce the material for students and practitioners. Features an accompanying website with PowerPoint presentations, glossary, web references, tutorial problems, and 'learn more' pages. This essential reference guide will prove invaluable to advanced undergraduate and graduate students, academics and researchers. It will also be of interest to professionals working for telecommunications network operators, equipment vendors, telecoms regulators, and engineers who wish to further their knowledge of next generation networks.

The Network Manager S Handbook Third Edition

Author : John M. Lusa
ISBN : 9781000109726
Genre : Computers
File Size : 32. 67 MB
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The Network Manager's Handbook is a one-of-a-kind resource featuring critical network technology assessments and career development advice from some of the most highly respected consultants and network managers in the field. This answer-filled compendium provides a rich blend of precise knowledge and real-world experience, the result of many thousands of hours of actual hands-on work in the field. The book gives you proven, successful, economical solutions to real-world problems associated with the host of new network technologies.

The Network Manager S Handbook

Author : John Lusa
ISBN : 9781351094085
Genre : Computers
File Size : 37. 74 MB
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This essential handbook for the data communications/network manager and planner covers a variety of data communication and IS topics. The Network Manager's Handbook addresses technical issues associated with local and wide area networking, purchasing communications services, supporting the network's users, understanding the telecommunications regulatory environment, personnel issues, and more.

Delivering Voice Over Ip Networks

Author : Daniel Minoli
ISBN : 9780471449355
Genre : Technology & Engineering
File Size : 89. 20 MB
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Includes new coverage on the advances in signaling protocols,second-generation switching and the development of non-switchedalternatives, and the implementation lessons learned. Contains in-depth coverage of network architectures used tosupport VoIP, performance and voice quality considerations,compression and integration methods for IP tranmissions.

Switching To Voip

Author : Theodore Wallingford
ISBN : 9780596517298
Genre : Computers
File Size : 68. 16 MB
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More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP. VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mails to fractions of a penny per use. But the real enterprise turn-on is how VoIP empowersbusinesses to mold and customize telecom and datacom solutions using a single, cohesive networking platform. These business drivers are so compelling that legacy telephony is going the way of the dinosaur, yielding to Voice over IP as the dominant enterprise communications paradigm. Developed from real-world experience by a senior developer, O'Reilly's Switching to VoIP provides solutions for the most common VoIP migration challenges. So if you're a network professional who is migrating from a traditional telephony system to a modern, feature-rich network, this book is a must-have. You'lldiscover the strengths and weaknesses of circuit-switched and packet-switched networks, how VoIP systems impact network infrastructure, as well as solutions for common challenges involved with IP voice migrations. Among the challenges discussed and projects presented: building a softPBX configuring IP phones ensuring quality of service scalability standards-compliance topological considerations coordinating a complete system ?switchover? migrating applications like voicemail and directoryservices retro-interfacing to traditional telephony supporting mobile users security and survivability dealing with the challenges of NAT To help you grasp the core principles at work, Switching to VoIP uses a combination of strategy and hands-on "how-to" that introduce VoIP routers and media gateways, various makes of IP telephone equipment, legacy analog phones, IPTables and Linux firewalls, and the Asterisk open source PBX software by Digium.You'll learn how to build an IP-based or legacy-compatible phone system and voicemail system complete with e-mail integration while becoming familiar with VoIP protocols and devices. Switching to VoIP remains vendor-neutral and advocates standards, not brands. Some of the standards explored include: SIP H.323, SCCP, and IAX Voice codecs 802.3af Type of Service, IP precedence, DiffServ, and RSVP 802.1a/b/g WLAN If VoIP has your attention, like so many others, then Switching to VoIP will help you build your own system, install it, and begin making calls. It's the only thing left between you and a modern telecom network.

Cisco Callmanager Best Practices

Author : Salvatore Collora
ISBN : 1587051397
Genre : Computers
File Size : 39. 52 MB
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IP telephony represents the future of telecommunications: a converged data and voice infrastructure boasting greater flexibility and more cost-effective scalability than traditional telephony. Having access to proven best practices, developed in the field by Cisco IP Telephony experts, helps you ensure a solid, successful deployment. Cisco CallManager Best Practices offers best practice solutions for CallManager and related IP telephony components such as IP phones, gateways, and applications. Written in short, to-the-point sections, this book lets you explore the tips, tricks, and lessons learned that will help you plan, install, configure, back up, restore, upgrade, patch, and secure Cisco CallManager, the core call processing component in a Cisco IP Telephony deployment. You'll also discover the best ways to use services and parameters, directory integration, call detail records, management and monitoring applications, and more. Customers inspired this book by asking the same questions time after.

Designing For Cisco Internetwork Solutions Desgn Authorized Ccda Self Study Guide Exam 640 863

Author : Diane Teare
ISBN : 0132796783
Genre : Computers
File Size : 30. 72 MB
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Authorized Self-Study Guide Designing for Cisco Internetwork Solutions (DESGN) Second Edition Foundation learning for CCDA exam 640-863 Designing for Cisco Internetwork Solutions (DESGN), Second Edition, is a Cisco®-authorized, self-paced learning tool for CCDA® foundation learning. This book provides you with the knowledge needed to design enterprise networks. By reading this book, you will gain a thorough understanding of designing routed and switched network infrastructures and services within a modular architecture. In Designing for Cisco Internetwork Solutions (DESGN), Second Edition, you will study a broad range of network design principles and guidelines. You will learn about network design in the context of the Cisco Service-Oriented Network Architecture (SONA) framework and the Cisco Enterprise Architecture. Specific topics include campus and data center infrastructure, remote connectivity, IP addressing design, routing protocol selection, voice network design, wireless network design, and including security in your designs. An ongoing case study plus chapter-ending review questions illustrate and help solidify the concepts presented in the book. Whether you are preparing for CCDA certification or simply want to gain a better understanding of network design principles, you will benefit from the foundation information presented in this book. Designing for Cisco Internetwork Solutions (DESGN), Second Edition, is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. Diane Teare is a professional in the networking, training, and e-learning fields. She has more than 20 years of experience in designing, implementing, and troubleshooting network hardware and software and has also been involved in teaching, course design, and project management. She has extensive knowledge of network design and routing technologies and is an instructor with one of the largest authorized Cisco Learning Partners. Understand the Cisco vision of intelligent networks and the SONA framework Learn how to structure and modularize network designs within the Cisco Enterprise Architecture Design basic campus and data center networks Build designs for remote connectivity with WAN technologies Create IPv4 addressing schemes Understand IPv6 design Select the appropriate routing protocol for various modules in the Cisco Enterprise Architecture Design basic VoIP and IP telephony networks Understand wireless design principles Build security into your network designs This volume is in the Certification Self-Study Series offered by Cisco Press®. Books in this series provide officially developed self-study solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations. Category: Cisco Press—Network Design Covers: CCDA Exam 640-863

Enterprise Networking Multilayer Switching And Applications

Author : Serpanos, Dimitrios N.
ISBN : 9781591400042
Genre : Computers
File Size : 31. 33 MB
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Enterprise Networking: Multilayer Switching and Applications offers up to date information relevant for the design of modem corporate networks and for the evaluation of new networking equipment. The book describes the architectures, standards high-availability and network policies that are requirements of modern switched networks.

Implementing Voice Over Ip

Author : Bhumip Khasnabish
ISBN : 9780471460886
Genre : Technology & Engineering
File Size : 32. 93 MB
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Public and private networks will eventually be configured in such a way that all voice calls are routed using Internet protocols Reviews existing and emerging standards for voice over IP Provides detailed guidance on how to engineer an efficient VoIP network Discusses quality of service (QoS) enforcement techniques Shows how to prototype and test a network's performance

Top Down Network Design

Author : Priscilla Oppenheimer
ISBN : 1587051524
Genre : Computers
File Size : 29. 94 MB
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A systems analysis approach to enterprise network design Master techniques for checking the health of an existing network to develop a baseline for measuring performance of a new network design Explore solutions for meeting QoS requirements, including ATM traffic management, IETF controlled-load and guaranteed services, IP multicast, and advanced switching, queuing, and routing algorithms Develop network designs that provide the high bandwidth and low delay required for real-time applications such as multimedia, distance learning, and videoconferencing Identify the advantages and disadvantages of various switching and routing protocols, including transparent bridging, Inter-Switch Link (ISL), IEEE 802.1Q, IGRP, EIGRP, OSPF, and BGP4 Effectively incorporate new technologies into enterprise network designs, including VPNs, wireless networking, and IP Telephony Top-Down Network Design, Second Edition, is a practical and comprehensive guide to designing enterprise networks that are reliable, secure, and manageable. Using illustrations and real-world examples, it teaches a systematic method for network design that can be applied to campus LANs, remote-access networks, WAN links, and large-scale internetworks. You will learn to analyze business and technical requirements, examine traffic flow and QoS requirements, and select protocols and technologies based on performance goals. You will also develop an understanding of network performance factors such as network utilization, throughput, accuracy, efficiency, delay, and jitter. Several charts and job aids will help you apply a top-down approach to network design. This Second Edition has been revised to include new and updated material on wireless networks, virtual private networks (VPNs), network security, network redundancy, modularity in network designs, dynamic addressing for IPv4 and IPv6, new network design and management tools, Ethernet scalability options (including 10-Gbps Ethernet, Metro Ethernet, and Long-Reach Ethernet), and networks that carry voice and data traffic. Top-Down Network Design, Second Edition, has a companion website at http://www.topdownbook.com, which includes updates to the book, links to white papers, and supplemental information about design resources. 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.

Network Infrastructure Requirements For Enterprise Ip Telephony

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File Size : 70. 68 MB
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Internet Telephone Monthly Newsletter

Author :
ISBN :
Genre :
File Size : 27. 30 MB
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Cisco Network Design Solutions For Small Medium Businesses

Author : Peter Rybaczyk
ISBN : 1587051435
Genre : Computers
File Size : 57. 86 MB
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Master the design and deployment of small and medium-sized business networks.

Triple Play

Author : Francisco J. Hens
ISBN : 0470754397
Genre : Technology & Engineering
File Size : 21. 28 MB
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“Triple Play”is a combination of Internet access, voice communication (telephony), and entertainment services such as IP television and video on demand. The erosion of the traditional voice service, together with the ever-increasing competition between companies, is pushing the telecommunications industry towards a major shift in its business models. Customers want more services in a more flexible way. Today, this shift can only be carried out by offering converged services built around the Internet Protocol (IP). Triple Play, a bundle of voice, video, and data services for residential customers, is the basis of this new strategy. Hens and Caballero explain how and why the telecommunications industry is facing this change, how to define, implement and offer these new services, and describes the technology behind the converged network. Triple Play analyses a number of business strategies to minimise costs, while migrating infrastructures and offering new services. Triple Play: Describes the elementary concepts of triple play service provision and gives detailed technical information to highlight key aspects. Discussed access networks, transport, signaling, service definition and business models. Covers the latest innovations in Triple Play services such as Ethernet in the First Mile (EFM), VDSL2 (Very High Speed DSL second generation), pseudowires andMultiprotocol Label Switching (MPLS). Explores video solutions (encoding, IPTV, VoD) alongside transmission and switching technologies (Ethernet, DSL, PON, NG-SDH). Includes a chapter on IP Multimedia Subsystem (IMS) and on fixed/mobile convergence. Triple Play: Building the Converged Network for IP, VoIP and IPTV provides decision makers, engineers, telecommunications operators, network equipment manufacturers, installers and IT managers with a thorough understanding of the changes of traditional voice service and its impact upon the telecommunications industry.

Designing For Cisco Internetwork Solutions Desgn Foundation Learning Guide

Author : Sean Wilkins
ISBN : 9780132582421
Genre : Computers
File Size : 39. 75 MB
Format : PDF, ePub
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Designing for Cisco Internetwork Solutions (DESGN) Foundation Learning Guide Third Edition Sean Wilkins Foundation learning for the CCDA DESGN 640-864 exam Designing for Cisco Internetwork Solutions (DESGN) Foundation Learning Guide, Third Edition, is a Cisco®-authorized, self-paced learning tool for CCDA® foundation learning. This book provides you with the knowledge needed to design enterprise networks. By reading this book, you will gain a thorough understanding of designing routed and switched network infrastructures and services involving LAN, WAN, and broadband access for businesses and organizations. Designing for Cisco Internetwork Solutions (DESGN) Foundation Learning Guide, Third Edition teaches you how to gather internetworking requirements, identify solutions, and design the network infrastructure and services to ensure basic functionality using the principles of hierarchical network design to structure and modularize a converged enterprise network design. Specific topics include understanding the design methodology; structuring and modularizing the network design; designing the Enterprise Campus, Enterprise Data Center, Enterprise Edge, and remote modules as needed; designing an addressing plan and selecting suitable routing protocols; designing basic voice transport across the network; designing a basic wireless solution; and evaluating security solutions. Chapter-ending review questions illustrate and help solidify the concepts presented in the book. Whether you are preparing for CCDA certification or simply want to gain a better understanding of network design principles, you will benefit from the foundation information presented in this book. Designing for Cisco Internetwork Solutions (DESGN) Foundation Learning Guide, Third Edition, is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. · Understand network design methodologies and the lifecycle of a network · Learn how to structure and modularize network designs within the Cisco Network Architectures for the Enterprise · Design basic campus and data center networks · Build designs for remote connectivity with WAN technologies · Examine IPv4 and IPv6 addressing schemes · Select the appropriate routing protocols for various modules in the enterprise architecture · Evaluate security solutions for the network · Identify voice and video networking considerations · Understand design technologies and considerations when implementing a controller-based wireless network This book is in the Foundation Learning Guide Series. These guides are developed together with Cisco® as the only authorized, self-paced learning tools that help networking professionals build their understanding of networking concepts and prepare for Cisco certification exams.

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