{"product_id":"switching-to-voip-a-solutions-manual-for-network-professionals-9780596008680","title":"Switching to Voip: A Solutions Manual for Network Professionals","description":"\u003cp\u003eMore 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.\u003c\/p\u003e \u003cp\u003eVoIP 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.\u003c\/p\u003e \u003cp\u003eDeveloped from real-world experience by a senior developer, O'Reilly's \u003ci\u003eSwitching to VoIP\u003c\/i\u003e 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: \u003c\/p\u003e \u003cul\u003e\n\u003cli\u003ebuilding a softPBX\u003c\/li\u003e\n\u003cli\u003econfiguring IP phones\u003c\/li\u003e\n\u003cli\u003eensuring quality of service\u003c\/li\u003e\n\u003cli\u003escalability\u003c\/li\u003e\n\u003cli\u003estandards-compliance\u003c\/li\u003e\n\u003cli\u003etopological considerations\u003c\/li\u003e\n\u003cli\u003ecoordinating a complete system ?switchover?\u003c\/li\u003e\n\u003cli\u003emigrating applications like voicemail and directoryservices\u003c\/li\u003e\n\u003cli\u003eretro-interfacing to traditional telephony\u003c\/li\u003e\n\u003cli\u003esupporting mobile users\u003c\/li\u003e\n\u003cli\u003esecurity and survivability\u003c\/li\u003e\n\u003cli\u003edealing with the challenges of NAT\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTo help you grasp the core principles at work, \u003ci\u003eSwitching to VoIP\u003c\/i\u003e 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. \u003ci\u003eSwitching to VoIP\u003c\/i\u003e remains vendor-neutral and advocates standards, not brands. Some of the standards explored include: \u003c\/p\u003e \u003cul\u003e\n\u003cli\u003eSIP\u003c\/li\u003e\n\u003cli\u003eH.323, SCCP, and IAX\u003c\/li\u003e\n\u003cli\u003eVoice codecs\u003c\/li\u003e\n\u003cli\u003e802.3af\u003c\/li\u003e\n\u003cli\u003eType of Service, IP precedence, DiffServ, and RSVP\u003c\/li\u003e\n\u003cli\u003e802.1a\/b\/g WLAN\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf 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.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e O'Reilly Media\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 07\/19\/2005\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9780596008680\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 477\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 1.90lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.20h x 7.50w x 1.10d\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReview Citations: \u003c\/strong\u003e\u003ci\u003eLibrary Journal\u003c\/i\u003e 11\/01\/2005 pg. 8\u003cbr\u003e","brand":"Theodore Wallingford","offers":[{"title":"Default Title","offer_id":38012812591285,"sku":"9780596008680","price":33.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/0804\/6492\/products\/img_15c4b456-1292-4786-a736-6cdc8fa156e5.jpg?v=1609137926","url":"https:\/\/pastforward.org\/products\/switching-to-voip-a-solutions-manual-for-network-professionals-9780596008680","provider":"Past Forward","version":"1.0","type":"link"}