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VoIP and unified communications : internet telephony and the future voice network /
Translates technical jargon into practical business communications solutions This book takes readers from traditional voice, fax, video, and data services delivered via separate platforms to a single, unified platform delivering all of these services seamlessly via the Internet. With its clear, jarg...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Hoboken, N.J. :
Wiley,
©2012.
|
| Temas: | |
| Acceso en línea: | Texto completo (Requiere registro previo con correo institucional) |
MARC
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| 100 | 1 | |a Flanagan, William A. | |
| 245 | 1 | 0 | |a VoIP and unified communications : |b internet telephony and the future voice network / |c William A. Flanagan. |
| 246 | 3 | |a Understanding VoIP and unified communications and the future voice network | |
| 260 | |a Hoboken, N.J. : |b Wiley, |c ©2012. | ||
| 300 | |a 1 online resource (xv, 298 pages) : |b illustrations | ||
| 336 | |a text |b txt |2 rdacontent | ||
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| 588 | 0 | |a Print version record. | |
| 505 | 0 | |a VoIP and Unified Communications: Internet Telephony and the Future Voice Network; Contents; Preface; Acknowledgments; 1: IP Technology Disrupts Voice Telephony; 1.1: Introduction to the Public Switched Telephone Network; 1.2: The Digital PSTN; 1.3: The Packet Revolution in Telephony; 1.3.1: Summary of Packet Switching; 1.3.2: Link Capacity: TDM versus Packets; 1.3.3: VoIP and The Cloud -- IN SHORT: Reading Network Drawings; 2: Traditional Telephones Still Set Expectations; 2.1: Availability: How the Bell System Ensured Service; 2.2: Call Completion. | |
| 505 | 8 | |a 2.3: Sound Quality: Encoding for Recognizable Voices2.4: Low Latency; 2.5: Call Setup Delays; 2.6: Impairments Controlled: Echo, Singing, Distortion, Noise; 3: From Circuits to Packets; 3.1: Data and Signaling Preceded Voice; 3.1.1: X.25 Packet Data Service; 3.1.2: SS7: PSTN Signaling on Packets; 3.1.3: ISDN; 3.2: Putting Voice into Packets; 3.2.1: Voice Encoding; 3.2.2: Dicing and Splicing Voice Streams; 3.2.3: The Latency Budget; 4: Packet Transmission and Switching; 4.1: The Physical Layer: Transmission; IN SHORT: The Endian Wars; 4.2: Data Link Protocols; 4.3: IP, the Network Protocol. | |
| 505 | 8 | |a 4.4: Layer 4 Transport Protocols4.4.1: Transmission Control Protocol; 4.4.2: User Datagram Protocol; 4.4.3: Stream Control Transmission Protocol; 4.5: Higher Layer Processes; 4.5.1: RTP; 4.5.2: RTCP; 4.5.3: Multiplexing RTP and RTCP on One UDP Port; 4.5.4: RTP Mixers and Translators; 4.5.5: Layered Encoding; 4.5.6: Profiles for Audio and Video Conferences; 4.5.7: Security via Encryption; IN SHORT: Public Key Infrastructure (PKI); 4.6: Saving Bandwidth; 4.6.1: Voice Compression; 4.6.2: Header Compression; 4.6.3: Silence Suppression, VAD; 4.6.4: Sub-Packet Multiplexing. | |
| 505 | 8 | |a 4.6.5: Protocol and Codec Selection4.7: Differences: Circuit versus Packet Switched; 4.7.1: Power to the Desktop Phone; 4.7.2: Phone as Computer and Computer as Phone; 4.7.3: Length of a Phone Line; 4.7.4: Scaling to Large Size; 4.7.5: Software Ownership and Licenses; 5: VoIP Signaling and Call Processing; 5.1: What Packet Voice and UC Systems Share; 5.2: Session Initiation Protocol (SIP); 5.2.1: SIP Architecture; 5.2.2: SIP Messages; 5.2.3: SIP Header Fields and Behaviors; 5.3: Session Description Protocol; IN SHORT: ABNF; 5.4: Media Gateway Control Protocol; 5.4.1: MGW Functions. | |
| 505 | 8 | |a 5.4.2: MGW Connection Model5.4.3: Megaco Procedures; 5.4.4: Megaco Details; 5.4.5: Signaling Conversion; 5.4.6: Voice Transcoding; 5.5: H.323; 5.5.1: H.323 Architecture; 5.5.2: Gatekeeper; 5.5.3: Gateway; 5.5.4: Terminal; 5.5.5: Multipoint Control Unit; 5.5.6: Call Procedures; 5.6: Directory Services; 5.6.1: Domain Name Service (DNS); 5.6.2: ENUM; 6: VoIP and Unified Communications Define the Future; 6.1: Voice as Before, with Additions; 6.2: Legacy Services to Keep and Improve with VoIP; 6.2.1: Flexible Call Routing and 800 Numbers; 6.2.2: Call on Hold; 6.2.3: Call Transfer. | |
| 505 | 8 | |a 6.2.4: Call Forwarding. | |
| 520 | |a Translates technical jargon into practical business communications solutions This book takes readers from traditional voice, fax, video, and data services delivered via separate platforms to a single, unified platform delivering all of these services seamlessly via the Internet. With its clear, jargon-free explanations, the author enables all readers to better understand and assess the growing number of voice over Internet protocol (VoIP) and unified communications (UC) products and services that are available for businesses. VoIP and Unified Communications is based on the author's careful rev. | ||
| 504 | |a Includes bibliographical references and index. | ||
| 590 | |a O'Reilly |b O'Reilly Online Learning: Academic/Public Library Edition | ||
| 650 | 0 | |a Internet telephony. | |
| 650 | 0 | |a Multimedia communications. | |
| 650 | 6 | |a Téléphonie Internet. | |
| 650 | 6 | |a Réseaux multimédias. | |
| 650 | 7 | |a TECHNOLOGY & ENGINEERING |x Telecommunications. |2 bisacsh | |
| 650 | 7 | |a Internet telephony |2 fast | |
| 650 | 7 | |a Multimedia communications |2 fast | |
| 776 | 0 | 8 | |i Print version: |a Flanagan, William A. |t VoIP and unified communications. |d Hoboken, N.J. : Wiley, ©2012 |w (DLC) 2011028943 |
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