Asterisk: The Future of Telephony

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作者：Jim Van Meggelen, Jared Smith, Leif Madsen
出版日期：September 16, 2005
出版社：O'Reilly
页数：404
ISBN：ISBN-10: 0596009623 ISBN-13: 978-0596009625
文件格式：CHM


Product Description
It may be a while before Internet telephony with VoIP (Voice overInternet Protocol) reaches critical mass, but there’s alreadytremendous movement in that direction. A lot of organizations are notonly attracted to VoIP’s promise of cost savings, but its ability tomove data, images, and voice traffic over the same connection. Think ofit: a single Internet phone call can take information sharing to awhole new level.
That’s why many IT administrators and developers are activelylooking to set up VoIP-based private telephone switching systems withinthe enterprise. The efficiency that network users can reach with it isalmost mind-boggling. And cheap, if the system is built with opensource software like Asterisk. There are commercial VoIP options outthere, but many are expensive systems running old, complicated code onobsolete hardware. Asterisk runs on Linux and can interoperate withalmost all standards-based telephony equipment. And you can program itto your liking.
Asterisk’s flexibility comes at a price, however: it’s not a simple system to learn, and the documentation is lacking.  Asterisk: The Future of Telephonysolves that problem by offering a complete roadmap for installing,configuring, and integrating Asterisk with existing phone systems. Ourguide walks you through a basic dial plan step by step, and gives youenough working knowledge to set up a simple but complete system.
What you end up with is largely up to you. Asterisk embraces theconcept of standards-compliance, but also gives you freedom to choosehow to implement your system. Asterisk: The Future of Telephonyoutlines all the options, and shows you how to set up voicemailservices, call conferencing, interactive voice response, call waiting,caller ID, and more. You’ll also learn how Asterisk merges voice anddata traffic seamlessly across disparate networks. And you won’t needadditional hardware. For interconnection with digital and analogtelephone equipment, Asterisk supports a number of hardware devices.
Ready for the future of telephony? We’ll help you hook it up.
About the Author
Jim Van Meggelen is President and CTO of Core Telecom Innovations, aCanadian-based provider of open-source telephony solutions. He has overfifteen years of enterprise telecom experience, for such companies asNortel, Williams and Telus, and has has extensive knowledge of bothlegacy and VoIP equipment from manufacturers such as Nortel, Cisco andAvaya. Jim was the architect of two of the world’s largest managedenterprise voice networks; each solution serving roughlytwenty-thousand users in more than one-thousand communities acrossCanada, providing telecommunications in five different languages,through six time zones, administered completely from a centrallocation. These networks pioneered the use of extensive automation anddatabase control in a branch voice network – functionalities notgenerally available in proprietary telecommunications systems. Jim hasnow moved on from the world of proprietary telecom, and is commited toopen-source telephony. Jim is one of the principal contributors to theAsterisk Documentation Project, and is co-authoring the upcomingO’Reilly book, Asterisk: The Future of Telephony. He enjoys teaching,public speaking, improvisational acting, and writing.
Jared Smith is a long time member of the Asterisk community, and aco-founder of the Asterisk Documentation Project. Jared has over adecade of systems administration and programming experience, along withseveral years of professional telephony and voice-over-IP experience.As the architect of one of the world’s largest Asterisk installations,he has a wealth of hands-on Asterisk knowledge. Jim Van Meggelen isPresident and CTO of Core Telecom Innovations, a Canadian-basedprovider of open-source telephony solutions. He has over fifteen yearsof enterprise telecom experience, for such companies as Nortel,Williams and Telus, and has extensive knowledge of both legacy and VoIPequipment from manufacturers such as Nortel, Cisco and Avaya. Jim isone of the principal contributors to the Asterisk DocumentationProject. Leif Madsen first took an interest in Asterisk whileattempting to find a voice conferencing solution for him and hisfriends. After someone suggested trying Asterisk, the obsession began.Wanting to contribute and be involved with the community, and noticingthe lack of Asterisk documentation, he co-founded the AsteriskDocumentation Project.
Leif Madsen first took an interest in Asterisk while attempting tofind a voice conferencing solution for him and his friends. Aftersomeone suggested trying Asterisk, the obsession began. Wanting tocontribute and be involved with the community, and noticing the lack ofAsterisk documentation, he co-founded the Asterisk DocumentationProject.

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