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Samrat Ganguly VoIP - eccovds.ru
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Samrat Ganguly VoIP


Understand how new network technologies impact VoIP! Voice over Internet Protocol (VoIP) is revolutionizing the way people communicate – both in the corporate world and in personal life. The enormous success of VoIP has led to its adoption in a wide range of networking technologies. Each network technology has its unique features and poses distinct challenges for the performance of VoIP. VoIP: Wireless, P2P and New Enterprise Voice over IPdescribes the issues arising in the deployment of VoIP in an emerging heterogeneous network environment. Along with a brief overview of the concepts, protocols, algorithms, and equipment involved in realizing VoIP, this book focuses on two areas: quality and performance issues in deploying VoIP over various network settings, and the new mechanisms and protocols in these emerging networks to assist the deployment of VoIP. VoIP: Wireless, P2P and New Enterprise Voice over IP: Discusses the basics of VoIP, VoIP codecs and VoIP Protocols including SIP and H.323. Details new technologies such as P2P technology, VoWiFi, WiMax, and 3G Networks. Explains the QoS issues arising from deploying VoIP using the new technologies. Solves the performance issues that arise when VoIP is deployed over different network technologies. This book is an invaluable resource for professional network engineers, designers, managers, researchers, decision makers and project managers overseeing VoIP implementations. Market analysts, consultants, and those studying advanced undergraduate and graduate courses on data, voice and multimedia communications will also find this book insightful.

10538.93 RUR

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Samrat Upadhyay City Son

Sumit Ganguly Fearful Symmetry

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4250 RUR
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VoIP-телефон AudioCodes UC450HDEPSG


VoIP-телефон AudioCodes UC450HDEPSG (VoIP-телефон, протоколы связи: SIP, громкая связь (Hands Free), подключение гарнитуры, встроенный цветной LCD-дисплей, сенсорный, порты: USB, WAN, LAN, Gigabit LAN). Функции: Встроенная телефонная книга, Поддержка PoE, Определитель номера, Удержание, ожидание вызова, Конференц-связь, Громкая связь, Web-интерфейс, Поддержка NAT.

43150 RUR
AudioCodes

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Sivannarayana Nagireddi VoIP Voice and Fax Signal Processing


A complete and systematic treatment of signal processing for VoIP voice and fax This book presents a consolidated view and basic approach to signal processing for VoIP voice and fax solutions. It provides readers with complete coverage of the topic, from how things work in voice and fax modules, to signal processing aspects, implementation, and testing. Beginning with an overview of VoIP infrastructure, interfaces, and signals, the book systematically covers: Voice compression Packet loss concealment techniques DTMF detection, generation, and rejection Wideband voice modules operation VoIP Voice-Network bit rate calculations VoIP voice testing Fax over IP and modem over IP Country deviations of PSTN mapped to VoIP VoIP on different processors and architectures Generic VAD-CNG for waveform codecs Echo cancellation Caller ID features in VoIP Packetization—RTP, RTCP, and jitter buffer Clock sources for VoIP applications Fax operation on PSTN, modulations, and fax messages Fax over IP payload formats and bit rate calculations Voice packets jitter with large data packets VoIP voice quality Over 100 questions and answers on voice and more than seventy questions and answers on fax are provided at the back of the book to reinforce the topics covered throughout the text. Additionally, several clarification, interpretation, and discussion sections are included in selected chapters to aide in readers' comprehension. VoIP Voice and Fax Signal Processing is an indispensable resource for professional electrical engineers, voice and fax solution developers, product and deployment support teams, quality assurance and test engineers, and computer engineers. It also serves as a valuable textbook for graduate-level students in electrical engineering and computer engineering courses.

14022.14 RUR

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Timothy Kelly V. VoIP For Dummies


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

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VoIP: Wireless, P2P and New Enterprise Voice over IP ...

VoIP: Wireless, P2P and New Enterprise Voice over IP | Ganguly, Samrat, Bhatnagar, Sudeept | ISBN: 9780470319567 | Kostenloser Versand für alle Bücher mit Versand und Verkauf duch Amazon.

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Amazon.com: VoIP: Wireless, P2P and New Enterprise Voice over IP (9780470319567): Ganguly, Samrat, Bhatnagar, Sudeept: Books Skip to main content.us. Books. Hello, Sign in. Account & Lists Account Returns & Orders. Try Prime. Cart Hello Select your address Holiday Deals Gift Cards Best Sellers Customer Service Find a Gift New Releases Whole Foods AmazonBasics Free Shipping Registry Sell ...

VoIP: Wireless, P2P and New Enterprise Voice over IP by ...

VoIP: Wireless, P2P and New Enterprise Voice over IP by Samrat Ganguly (2008-05-19) | Samrat Ganguly;Sudeept Bhatnagar | ISBN: | Kostenloser Versand für alle Bücher mit Versand und Verkauf duch Amazon.

VoIP: Wireless P2P and New Enterprise Voice over IP by ...

by Samrat Ganguly. Voice over Internet Protocol (VoIP) is revolutionizing the way people communicate – both in the corporate world and in personal life. The enormous success of VoIP has led to its adoption in a wide range of networking technologies. Each network technology has its unique features and poses distinct challenges for the performance of VoIP. VoIP: Wireless, P2P and New ...

VoIP : Samrat Ganguly : 9780470319567

Samrat Ganguly currently works as a Research Staff Member at NEC Laboratories America. He gained his PhD in Computer Science from Rutgers University. His research interests include VoIP over wireless mesh networks, streaming over 3G networks, Grid computing, and QoS issues. He has presented papers for conferences and workshops such as Infocom ...

VoIP: Wireless, P2P and New Enterprise Voice over IP ...

VoIP: Wireless, P2P and New Enterprise Voice over IP Samrat Ganguly, Sudeept Bhatnagar(auth.) Year: 2008. Language: english. Pages: 264. ISBN 13: 9780470997925. File: PDF, 14.70 MB. Preview. Send-to-Kindle or Email . Please login to your account first; Need help? Please read our short guide how to send a book to Kindle. Save for later . You may be interested in Powered by Rec2Me Deploying ...

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(PDF) Performance of VoIP in a 802.11 wireless mesh ...

Performance of VoIP in a 802.11 Wireless Mesh Network Dragos¸ Niculescu, Samrat Ganguly, Kyungtae Kim, Rauf Izmailov NEC Laboratories America, Princeton, NJ {dragos,samrat,kyungtae,rauf}@nec-labs.com 8 Abstract— Performance in multihop wireless networks is 7 Number of calls supoported known to degrade with the number of hops for both TCP and 6 UDP traffic.

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VoIP - download.e-bookshelf.de

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VoIP by Ganguly, Samrat (ebook)

VoIP: Wireless, P2P and New Enterprise Voice over IP by Samrat Ganguly. Understand how new network technologies impact VoIP! Voice over Internet Protocol (VoIP) is revolutionizing the way people communicate – both in the corporate world and in personal life. The enormous success of VoIP has led to its adoption in a wide range of networking technologies. Each network technology has its unique ...

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Understand how new network technologies impact VoIP! Voice over Internet Protocol (VoIP) is revolutionizing the waypeople communicate - both in the corporate world and inpersonal life.

(PDF) Performance Optimization of VoIP using an Overlay ...

The VoIP TesterFor our experiments we created a VoIP-tester (VT) application that runs on user-nodes. The VoIP-tester (VT) is capable of generating VoIP calls to other user-nodes. Calls consist of sequences of talk-spurts of 15 seconds or 1000 packets each (similar to the path-prober). Each talk-spurt of 1000 packets is surrounded by 5 control packets on either side, indicating the beginning ...

Samrat GANGULY | Manager/Architect | PhD | Apple Inc ...

Samrat Ganguly We consider the problem of supporting VoIP calls over a wireless mesh network. We particularly consider the call admission control (CAC) decision problem for VoIP calls on a mesh ...

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Introduction to VoIP Networks - VoIP - Wiley Online Library

Samrat Ganguly. NEC Laboratories America Inc., USA. Search for more papers by this author. Sudeept Bhatnagar. AirTight Networks, USA. Search for more papers by this author . Book Author(s): Samrat Ganguly. NEC Laboratories America Inc., USA. Search for more papers by this author. Sudeept Bhatnagar. AirTight Networks, USA. Search for more papers by this author. First published: 03 April 2008 ...

VoIP over Infrastructure Overlays - VoIP: Wireless, P2P ...

How to Cite. Ganguly, S. and Bhatnagar, S. (2008) VoIP over Infrastructure Overlays, in VoIP: Wireless, P2P and New Enterprise Voice over IP, John Wiley & Sons, Ltd ...

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CiteSeerX — VoIP on Wireless Meshes: Models, Algorithms ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—We study the problem of supporting VoIP calls in a wireless mesh network. Specifically, we propose solutions for call admission control (CAC) and route selection for VoIP calls. Call admission decisions must evaluate how the capacity of the mesh network is utilized by the existing calls.

‪Samrat Ganguly‬ - ‪Google Scholar‬

‪Apple Inc‬ - ‪Cited by 3,932‬ - ‪Networks‬ The following articles are merged in Scholar. Their combined citations are counted only for the first article.

CiteSeerX — Performance optimizations for deploying voip ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): In the recent past, there has been a tremendous increase in the popularity of VoIP services as a result of huge growth in broadband access. The same voice-over-Internet protocol (VoIP) service poses new challenges when deployed over a wireless mesh network, while enabling users to make voice calls using WiFi phones.

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Rauf Izmailov's 73 research works with 1,589 citations and 3,176 reads, including: Optimal Load Balancing in Publish/Subscribe Broker Networks Using Active Workload Management

Marion Tracey VOiP Voice Over iP 100 Success Secrets - 100 Most Asked Questions on VOiP Phones, Providers and Services


There has never been an VoIP Guide like this.
100 Success Secrets is not about the ins and outs of VoIP. Instead, it answers the top 100 questions that we are asked and those we come across in forums, our consultancy and education programs. It tells you exactly how to deal with those questions, with tips that have never before been offered in print.

This book is also not about VoIP's best practice and standards details. Instead, it introduces everything you want to know to be successful with VoIP.

1485.57 RUR

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Alexander Raake Speech Quality of VoIP


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. This book bridges the gap between the technical network-world and the psychoacoustic world of quality perception. Alexander Raake’s unique perspective combines awareness of the technical characteristics of VoIP networks and original research concerning the perception of speech transmitted across them. Starting from the network designer’s point of view, the different characteristics of the network are addressed, and then linked to features perceived by users. This book provides an overview of the available knowledge on the principal, relevant aspects of speech and speech quality perception, of speech quality assessment, and of transmission properties of telephone and VoIP networks, and of the related perceptual features and resulting speech quality. Discussing new research into the specific time-varying degradations VoIP brings along, but also the considerable potential of quality improvement to be achieved with wideband speech transmission, Alexander Raake demonstrates how network and service characteristics impact on the users perception of quality. Speech Quality of VoIP: Offers an insight into speech quality of VoIP from a user's perspective. Presents an overview of different modelling approaches and a parametric network-planning model for quality prediction in VoIP networks. Draws on innovative new research on the quality degradation characteristic of VoIP. Explains in detail how telephone speech quality can be greatly enhanced with VoIP’s wideband speech transmission capability. Assesses the vast collection of references into the technical and scientific literature related to VoIP quality. Illustrates concepts throughout with mathematical models, algorithms and simulations. Speech Quality of VoIP is the definitive guide for researchers, engineers and network planners working in the field of VoIP, Quality of Service, and speech communication processing in telecommunications. Advanced undergraduate and graduate students on telecommunication and networking courses will also find this text an invaluable resource.

14285.61 RUR

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Olivier Hersent Beyond VoIP Protocols


In 1999-2000, VoIP (Voice-over-IP) telephony was one of the most successful buzzwords of the telecom bubble era. However, in 2001-2003, VoIP faced a very tough reality check. Now, manufacturers and service providers are drawing on what they have learnt from past experience in order to prepare to participate in the next major challenge faced by the telecommunications industry. This book offers a comprehensive overview of the issues to solve in order to deploy global revenue-generating effective «multimedia» services. Drawing on extensive research and practical deployment experience in VoIP, the authors provide essential advice for those seeking to design and implement a post-bubble VoIP network. Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony Introduces the basics of speech coding and voice quality Demonstrates how quality of service may be built into the network and deals with dimensioning aspects, e.g. multipoint communications and how to model call seizures. Explores the potential of multicast to turn an IP backbone into an optimized broadcast medium Includes amply illustrated, state-of-the-art practical advice for formulating a complete deployment strategy A companion volume to «IP Telephony: Deploying VoIP Protocols», this book takes the reader a stage deeper into how to prepare the network and exploit VoIP technology to its full potential.

9466.43 RUR

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VoIP-телефон Grandstream DP720


Дополнительная трубка Grandstream DP-720 в черном цветовом исполнении поддерживает работу с базовой станцией DP750 DECT VoIP от Grandstream. DECT VoIP-телефон поддерживает связь с базовой станцией на удалении до 300 метров на открытом воздухе и до 50 м - в помещении, предоставляя абоненту возможность свободного перемещения во время разговора с собеседником. Устройство поддерживает управление через WebUI, поддерживает быстрый набор, может применяться для 3-хсторонней конференц-связи.

3480 RUR
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