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[...]... Context-Aware Communications: Presence and IM 19 20 20 20 21 SIP Presence Instant Messaging The Integration of Communicationswith Applications 21 23 23 E-Commerce: Customer Relations Management Conferencing and Collaboration Telephony Call Control Services Intelligent Network ServicesUsing SIP: ITU Services CS-1 and CS-2 SIP Service Creation—Telephony-Style ENUM SIP Interworking with ITU-T Protocols Mixed Internet- PSTN... entertainment, and data applications To quote Jon Peterson, area director of the IETF: “The Internet is the service.” The SessionInitiationProtocol Is the Standard for VoIPandMultimediaCommunications Another change from the first edition of this book is the SessionInitiationProtocol (SIP) , which has been adopted by practically all public VoIP service providers for wired and wireless communications. .. familiar with the acronyms used in the table, and we also explain these acronyms and terms in the book They can also be found in the index Table 1.1 InternetCommunications in 2005 with Examples from North America CATEGORY WHO PROTOCOLS Open IM services Pulver FWD, Standard SIPwithVoIP voice Gizmo/ (competing islands) SIPphone, Damaka, Ineen STRENGTHS WEAKNESSES Internet Presence Video User gets SIP URI... and P2P applications and their nature are discussed in Chapter 20, “Peer-to-Peer SIP, ” and also in Chapter 6, SIP Overview.” Though the present VoIP industry is built on client-server (CS) SIP, this may significantly change To quote David Bryan from p2p.org: “P2P SIP may change VoIP to the same extent that VoIP has changed telecommunications.” VoIPandMultimediaCommunicationsServices Are Still Fragmented... Contents Summary References 184 184 Chapter 11 SIP Telephony Basic Telephony Services 185 185 SIPand PSTN Interworking Gateway Location and Routing SIP/ PSTN Protocol Interworking Types of Gateways SIPand Early Media SIP Telephony and ISUP Tunneling Enhanced Telephony Services Call Control Servicesand Third-Party Call Control Problem Statement The REFER Method SIP Third-Party Call Control Basic Third-Party... Internet- PSTN Services 23 24 25 PSTN and INTerworking (PINT) SPIRITS TRIP SIP Security SIP Accessibility to Communications for the Hearing and Speech Disabled SIP Orphans Commercial SIP Products What SIP Does Not Do Divergent Views on the Network Summary References Chapter 3 Architectural Principles of the Internet Telecom Architecture Internet Architecture The Internet Backbone Architecture The Internet Standards... Contents Multimedia Server Recording and Playback Control Session Description Session Announcements Session Invitation Authentication and Key Distribution Summary References Chapter 6 93 93 93 93 94 94 94 SIP Overview What Makes SIP Special 97 97 SIP Enabled Network Watching How Sausages Are Being Made What SIP Is Not Introduction to SIP Elements of a SIP Network User Agents Servers Location Services SIP. .. of the Internet has made the wired and wireless phone companies and the TV cable companies look for new business models that can take advantage of Internet technologies and protocols, among them the SessionInitiationProtocol (SIP) for real-time communications, such as Voice over IP (VoIP) , instant messaging (IM), video, conferencing/collaboration, and others Examples of the various categories and their... Enterprise Communications Network Consolidation: The Internet Voice over IP Presence—The Dial Tone for the Twenty-First Century? The Value Proposition of SIPSIP Is Not a Miracle Protocol The Short History of SIP References in This Book SIP Open Source Code andSIP Products References for Telephony Summary References 1 1 4 4 5 6 6 6 7 8 9 10 10 10 Chapter 2 InternetCommunications Enabled by SIPInternet Multimedia. .. “Emergency and Preemption Communication Services, ” discusses Internet- based emergency services The multimedia nature of Internetcommunications gives hearing- and speech-impaired people the opportunity to fully participate in rich communications for work and in personal life Chapter 17, “Accessibility for the Disabled,” discusses access to communications for disabled people The Rise of Peer-to-Peer Communications . Johnston Internet Communications Using SIP Delivering VoIP and Multimedia Services with Session Initiation Protocol Second Edition 01_776572 ffirs.qxp 6/5/06 9:34 PM Page iii Internet Communications Using. Johnston Internet Communications Using SIP Delivering VoIP and Multimedia Services with Session Initiation Protocol Second Edition 01_776572 ffirs.qxp 6/5/06 9:34 PM Page iii Internet Communications. Control Services 25 Intelligent Network Services Using SIP: ITU Services CS-1 and CS-2 25 SIP Service Creation—Telephony-Style 26 ENUM 27 SIP Interworking with ITU-T Protocols 27 Mixed Internet- PSTN