| KS OmniScriptum Publishing

132,230원  | 20250829  | 9786208499723

As Africa develops through decades, new technology has the potential to improve economic development of the continent. In this book the authors investigated the ability of companies to adopt disruptive technology in emerging economy context. The authors considering VoIP-Mobile (mVoIP) as a proxy of disruptive technology construct, and South Africa as an appropriate context for emerging economies.

 | 하연

225,000원  | 20110511  | 9788996644507

 | Verlag Unser Wissen

106,160원  | 20250131  | 9786208621957

VoIP wurde entwickelt, um gebuhrenpflichtige Dienste mit geringeren Kommunikationskosten zu emulieren. In VoIP-Anwendungen werden Stimmen digitalisiert und in kleine Blocke aufgeteilt. Diese Sprachblocke werden in einer Folge von Sprachpaketen unter Verwendung des RTP gekapselt und vom Benutzer-UDP ubermittelt.

 | Auerbach Publications

0원  | 20250523  | 9780849335211

VoIP is a term used in IP telephony for managing the delivery of digital voice information sent in discrete packets using the Internet Protocol, rather than traditional circuit-committed protocols of public telephone networks. The new technology of sending voice information in digital form is addressed completely in Testing Integrated QoS of VoIP: Packets to Perceptual Voice Quality, which details the techniques of testing VoIP networks to ensure quality of service. It also includes information on reducing one-way delay, jitter, and data loss for VoIP traffic while retaining the performance of other business-critical network applications.

민상원  | 홍릉과학출판사

28,000원  | 20110629  | 9788972839651

본서는 대부분 통신과 관련된 최신 내용을 다루고 있지만 각 내용의 앞부분은 기본개념과 기초기술을 소개하였다. 최근 기술개발이 복잡해지고 융합과 관련된 많은 사안들이 복합적으로 제시되고 있어 엔지니어들은 복합적 문제를 풀거나 창의적인 결과의 창출을 요구받고 있다. 복합적 문제를 풀고 창의적인 결과를 위해 저자는 기본에 충실함이 가장 중요하다고 판단하고 있다. 기본에 충실하여야 복잡한 문제를 각 모듈로 세분화할 수 있을 것이고, 모듈화해서 쪼개진 각 모듈을 풀어서 전체 복잡한 문제를 해결할 수 있을 것이다.

 | For Dummies

45,790원  | 20050902  | 9780764588433

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.

 | KS OmniScriptum Publishing

70,770원  | 20250224  | 9786208676834

Nelle precedenti tecnologie wireless, la trasmissione della voce ad alta qualita e molto difficile. Ma in seguito questo problema e stato risolto dal Voice over Internet Protocol, che utilizza il tradizionale protocollo Internet per trasmettere la voce sotto forma di pacchetti. La trasmissione della voce su aree piu vaste puo essere effettuata facilmente utilizzando il WiMAX. Tuttavia, le aree altamente sviluppate utilizzano il WiFi, che sta crescendo nella tecnologia wireless.

 | Edicoes Nosso Conhecimento

106,160원  | 20250131  | 9786208621926

O VoIP foi desenvolvido para emular servicos de portagem com custos de comunicacao mais baixos. Nas aplicacoes VoIP, as vozes sao digitalizadas e empacotadas em pequenos blocos. Estes blocos de voz sao encapsulados numa sequencia de pacotes de voz utilizando o RTP e entregues pelo UDP do utilizador. Para ajudar as aplicacoes VoIP a lidar com o desempenho imprevisivel da rede, o RTCP foi desenvolvido para monitorizar o desempenho dos pacotes RTP e fornecer feedback as aplicacoes VoIP.

 | KS OmniScriptum Publishing

70,770원  | 20250224  | 9786208676858

We wcze?niejszych technologiach bezprzewodowych transmisja głosu o wysokiej jako?ci jest bardzo trudna. Jednak po?niej problem ten został rozwi?zany przez Voice over Internet Protocol, ktory wykorzystuje tradycyjny protokoł internetowy do przesyłania głosu jako pakietow. Transmisja głosu na wi?kszych obszarach jest łatwa dzi?ki wykorzystaniu WiMAX. Jednak wysoko rozwini?te obszary wykorzystuj? WiFi, ktore jest coraz popularniejsz? technologi? bezprzewodow?.

애틀러스 리서치앤컨설팅  | 진한엠앤비(진한M&B)

180,000원  | 20130808  | 9788984325883

인터넷전화의 개념과 기본구조, 수익모델 등을 파악하고, 미국과 일본, 유럽을 중심으로 해외 인터넷전화 시장의 트렌드를 알아본다. 이어 국내 인터넷전화 시장의 현주소를 짚어본 다음, 미래 통신시장 변화의 큰 그림 속에서 인터넷전화의 발전방향을 제시하고자 한다.

 | AV Akademikerverlag

81,950원  | 20120528  | 9783639385441

Revision with unchanged content. Voice over Internet Protocol (VoIP) has become an increasingly popular way to provide phone services. At this moment there is a transition going on from de­livering voice over the Plain Old Telephone System (POTS) to using VoIP tech­nology. There are a number of problems that need to be taken into account in order to design a VoIP system. This book focuses on the problem of line echo.

Endler, David/ Collier, Mark  | McGraw-Hill Osborne Media

0원  | 20061201  | 9780072263640

VoIP is a communications technology that is prone to attacks such as SPIT, Voicemail Brute forcing, Caller ID Spoofing, Registration Hijacking, active directory number harvesting, and more. This book shows you how to proactively fuzz VoIP components for potential vulnerabilities using freely and commercially available tools.

 | McGraw-Hill

0원  | 20030117  | 9780071410762

VoIP SAVINGS AND FLEXIBILITY! TELEPHONE-LINE QUALITY?Despite the features that make Voice over IP so attractive from the standpoint of cost and flexibility of telephone services, businesses will only adopt it once they've determined whether, an...

 | Edizioni Sapienza

106,160원  | 20250131  | 9786208621919

Il VoIP e stato sviluppato per emulare i servizi a pagamento con costi di comunicazione inferiori. Nelle applicazioni VoIP, le voci vengono digitalizzate e pacchettizzate in piccoli blocchi. Questi blocchi vocali vengono incapsulati in una sequenza di pacchetti vocali utilizzando l'RTP e consegnati dall'UDP utente.

 | Editions Notre Savoir

106,160원  | 20250131  | 9786208621902

La VoIP a ete developpee pour emuler les services de peage avec un cout de communication plus faible. Dans les applications VoIP, les voix sont numerisees et mises en paquets en petits blocs. Ces blocs vocaux sont encapsules dans une sequence de paquets vocaux a l'aide du protocole RTP et transmis par l'utilisateur UDP.