Internet Communications Using SIP : Delivering VoIP and Multimedia Services With Session Initiation Protocol {2Nd Ed.}

■■ Security-sensitive organization—Security conscious small businesses or organizations of various types may not feel comfortabl ...

■■ Softswitches ■■ Media servers ■■ Network elements for QoS ■■ Policy servers for QoS, for classes of users and applications ■■ ...

same features as provided by server farms currently deployed in VoIP net- works. P2P SIP usage scenarios include applications th ...

[15] Nimcat/Avaya Networks P2P Enterprise nimX Phone System. http:// nimcatnetworks.com. [16] PEERIO Server-free Telephony Syste ...

353 At the time of the first edition of this book, the SIP standard was RFC 2543, which was replaced in June 2002 by RFC 3261. N ...

Figure 21.1 The growth of SIP-related IETF standards (http://rfc3261.net). The core SIP protocol is probably more than 95 percen ...

Short Term Challenges The short-term challenges for SIP implementations in the market are described in our companion book, SIP B ...

VoIP industry, for VoIP infrastructure vendors and service providers alike. The authors hope to have provided the reader with en ...

357 Index SYMBOLS AND NUMERICS !DOCTYPEheader, 143 180 Ringingresponse code, 189, 196–197 200 OKresponse code, 17, 23, 117, 203 ...

358 Index ALGs (Application Level Gateways), 173, 180–183 ALI (Automatic Line Identification) database, 280 Allowheader, 132, 14 ...

Index 359 bridges, conferencing, 247, 248–249, 335 “Buddy List” of users, 225, 226 BYEmethod, 103, 111 C CA (certificate authori ...

360 Index conference package, 249 conferencing addressing, 249 call control for, 247, 249, 250, 335 centralized, 251 changing ex ...

Index 361 text phones, 296 transcoding services, 294–298 video applications, 31–32, 289–290, 291 disasters, communications in, 4 ...

362 Index emergency communications (continued) requirements, 273, 274–275 resource priority, 281–282 routing, 273–274, 278–279, ...

Index 363 gateways ALGs, 173, 180–183 BGP, 186 CGI, 26, 147–148 controllers for, 98, 317–318, 321 enterprise, 188 GCP, 320 IM, 5 ...

364 Index IMS: TISPAN, wireline emulation of, 3 IN (Intelligent Network), 13, 25–26, 76, 153, 317 incoming proxy, 107 incomingta ...

Index 365 Internet Engineering Task Force (IETF). SeeIETF Internet Group Management (IGMP), 83 Internet hosts, 98 Internet Proto ...

366 Index ITU-T protocols, interworking with, 27–28 ITU-T telecommunication networks. Seetelecommunication networks IVR (interac ...

Index 367 text-based, 209 transport, 111 messaging, unified, 209–213 Metcalfe’s law, 3–4 methods. See also specific methods basi ...

368 Index networks. See alsoIP networks; mobile networks; peer-to-peer networks; telecommunication networks compatibility, type, ...