Switching to VoIP

Switching to VoIP
Author: Ted Wallingford
Publsiher: "O'Reilly Media, Inc."
Total Pages: 505
Release: 2005-06-30
Genre: Computers
ISBN: 9780596008680

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Based on real-world experience, this handy solutions manual addresses the most common VoIP migration challenges. Find out how to build your own VoIP system, install it, and begin making calls - so you can start saving today. Ideal for IT managers, network engineers, and system administrators.

Switching to VoIP

Switching to VoIP
Author: Theodore Wallingford
Publsiher: "O'Reilly Media, Inc."
Total Pages: 504
Release: 2005
Genre: Computers
ISBN: 9780596517298

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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.

Switching To Voip

Switching To Voip
Author: Ted Wallingford
Publsiher: Unknown
Total Pages: 514
Release: 2005
Genre: Electronic book
ISBN: 8173665311

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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 For Dummies

VoIP For Dummies
Author: Timothy V. Kelly
Publsiher: John Wiley & Sons
Total Pages: 312
Release: 2011-05-09
Genre: Technology & Engineering
ISBN: 9781118085523

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Put your phone system on your computer network and see the savings See how to get started with VoIP, how it works, and why it saves you money VoIP is techspeak for "voice over Internet protocol," but it could spell "saving big bucks" for your business! Here's where to get the scoop in plain English. Find out how VoIP can save you money, how voice communication travels online, and how to choose the best way to integrate your phone system with your network at home or at the office. Discover how to: Use VoIP for your business or home phone service Choose the best network type Set up VoIP on a wireless network Understand transports and services Demonstrate VoIP's advantages to management

CCNA Routing and Switching Portable Command Guide ICND1 100 105 ICND2 200 105 and CCNA 200 125

CCNA Routing and Switching Portable Command Guide  ICND1 100 105  ICND2 200 105  and CCNA 200 125
Author: Scott Empson
Publsiher: Cisco Press
Total Pages: 368
Release: 2016-05-17
Genre: Computers
ISBN: 9780134466156

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Here are all the CCNA-level Routing and Switching commands you need in one condensed, portable resource. CCNA Routing and Switching Portable Command Guide is filled with valuable, easy-to-access information—and it’s portable enough to use whether you’re in the server room or the equipment closet. The guide summarizes all CCNA certification-level Cisco IOS Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios. Throughout, configuration examples give you a better understanding of how these commands are used in simple network designs. This book has been completely updated to cover all topics in the new ICND1 100-105, ICND2 200-105, and CCNA 200-125 exams. Use this quick reference resource to help you memorize commands and concepts as you work to pass the CCNA Routing and Switching certification exam. Coverage includes Network Fundamentals: Subnetting, VLSM, route summarization, cables/connections, CLI LAN Switching: Switch configuration, VLANs, VLAN trunking protocol, inter-VLAN communication, STP, EtherChannel Routing (IPv4/IPv6): Router configuration, static routing, RIPng, EIGRP/EIGRPv6, OSPFv2/OSPFv3 WAN: Point-to-point protocols, eBGP, GRE tunnels, QoS Infrastructure Services: DHCP, FHRP, HSRP, NAT Infrastructure Security: Switch port security, ACL traffic management, device hardening Infrastructure Management: Backup/restore, password recovery, CDP, LLDP, IOS tools, device monitoring, IOS licensing, troubleshooting Quick, offline access to all CCNA Routing and Switching commands for research and solutions --Logical how-to topic groupings for a one-stop resource --Great for review before CCNA Routing and Switching certification exams --Compact size makes it easy to carry with you wherever you go --“Create Your Own Journal” section with blank, lined pages enables you to personalize the book for your needs --“What Do You Want to Do?” chart inside the back cover helps you to quickly reference specific tasks This book is part of the Cisco Press Certification Self-Study Product Family, which offers readers a self-paced study routine for Cisco® certification exams. Titles in the Cisco Press Certification Self-Study Product Family are part of a recommended learning program from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press.

SOHO Networking

SOHO Networking
Author: Pete Moulton
Publsiher: Prentice Hall Professional
Total Pages: 468
Release: 2003
Genre: Business & Economics
ISBN: 0130473316

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Perfect for professionals working from home or small business owners looking to build a network, this handbook includes coverage of how to install and configure a router and how to use a SoHo LAN. An entire section is devoted to wireless technologies. This book covers selection and installation of all components of a network.

Encyclopedia of Networked and Virtual Organizations

Encyclopedia of Networked and Virtual Organizations
Author: Putnik, Goran D.,Cruz-Cunha, Maria Manuela
Publsiher: IGI Global
Total Pages: 2048
Release: 2008-03-31
Genre: Business & Economics
ISBN: 9781599048864

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[Administration (référence électronique] ; informatique].

Day One Configuring EX Series Ethernet Switches

Day One Configuring EX Series Ethernet Switches
Author: Yong Kim,David Nguyen
Publsiher: Juniper Networks Books
Total Pages: 135
Release: 2010-09-01
Genre: Computers
ISBN: 9781936779154

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