VoIP Technology: Applications and Challenges, Chakraborty

Автор: Alexander Raake
Название: Speech Quality of VoIP: Assessment and Prediction
ISBN: 0470030607 ISBN-13(EAN): 9780470030608
Издательство: Wiley
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Цена: 118220.00 T
Наличие на складе: Поставка под заказ.
Описание: Finally a comprehensive overview of speech quality in VoIP from the user`s perspective! Speech Quality of VoIP is an essential guide to assessing the speech quality of VoIP networks, whilst addressing the implications for the design of VoIP networks and systems.

Автор: Jeremy Weissberg
Название: VoIP Technologies
ISBN: 1681176084 ISBN-13(EAN): 9781681176086
Издательство: Gazelle Book Services
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Цена: 217350.00 T
Наличие на складе: Невозможна поставка.
Описание: "Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. VoIP is undoubtedly a powerful and innovative communication tool for everyone, voice communication over the Internet is inherently less reliable than the public switched telephone network, because the Internet functions as a best-effort network without Quality of Service guarantee and voice data cannot be retransmitted. Because of the bandwidth efficiency and low costs that VoIP technology can provide, businesses are migrating from traditional copper-wire telephone systems to VoIP systems to reduce their monthly phone costs. VoIP Technologies introduces research strategies that address various issues with the aim of enhancing VoIP quality. VoIP solutions aimed at businesses have evolved into unified communications services that treat all communicationsphone calls, faxes, voice mail, e-mail, Web conferences, and moreas discrete units that can all be delivered via any means and to any handset, including cellphones. VoIP allows both voice and data communications to be run over a single network, which can significantly reduce infrastructure cost. We hope that you will enjoy reading these diverse studies. This book will provide a lot of useful information about current VoIP technology research aimed at practitioners and researchers as well as advanced graduate students."

Автор: Booth Char
Название: Hope, Hype and Voip: Riding the Library Technology Cycle
ISBN: 0838958117 ISBN-13(EAN): 9780838958117
Издательство: Mare Nostrum (Eurospan)
Цена: 48520.00 T
Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: In the July 2010 issue of Library Technology Reports, Char Booth examines the long-term adoption of one established tool, Voice over Internet Protocol (VoIP) in order to gain insight into the library innovation process. In addition to providing a wealth of guidance and information on how librarians can use this specific technology to enhance service, Booth also examines how various facets of this technology were examined, adopted, adapted and rejected. Hope, Hype and VoIP: Riding the Library Technology Cycle provides guidelines for how librarians looking at new technologies can evaluate them critically, creatively and with an eye toward sustainability.