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

SIP-related drafts that have expired (older than six months) can be found on several archives. As of this writing, following are ...

References for Telephony We assume throughout this book some understanding of telephone services and of telecommunication protoc ...

11 This chapter provides a short overview of the topics that are discussed in more detail in Chapters 4–20. The Internet challen ...

This chapter refers to many legacy telephony services. Readers may consult Newton’s Telecommunications Dictionary[1] for defini- ...

Table 2.1 (continued) FUNCTION OF THE PROTOCOL STANDARD [2] DESCRIPTION Session Description (SDP) RFC 2327 The description requi ...

Table 2.2 (continued) PSTN Class services Mobile cellular roaming Desktop call manager Replacement for Computer Telephony Integr ...

Addressing IP communications use SIP Uniform Resource Identifiers (URIs) for address- ing similar to e-mail, where the form of t ...

Figure 2.1 Basic SIP Table 2.3 SIP Operations in a Nutshell FUNCTION DESCRIPTION COMMENTS Discovery of destina- Get SIP URI out ...

Table 2.3 (continued) FUNCTION DESCRIPTION COMMENTS Query using a peer-to-peer This is the model for basic procedure such as Cho ...

Figure 2.2 Call routing performed by a SIP proxy server Overview of Services Provided by SIP Servers Multimedia conferencing on ...

Peer-to-Peer SIP (P2PSIP) P2P SIP is a recent development that follows the general P2P trend on the Internet. The end-to-end nat ...

Mobility in the Wider Concept This section examines mobility in the wider context of the Internet, the PSTN, mobile networks, an ...

be it file transfer, web browsing, or communications. For example, mobile IP is a useful feature when moving with a wireless-con ...

Table 2.4 Examples of Rich Presence Information On the phone Away Appointment Holiday Meal Meeting Driving In transit Travel Vac ...

Instant Messaging Instant messaging is the exchange of text messages between users in real time. The text messages need not to b ...

■■ Day of week, holidays, and time of day ■■ Promotions ■■ Service priorities dictated by business decisions ■■ Measuring the ag ...

Figure 2.3 Conference call hosted on a SIP endpoint, such as a SIP phone Telephony Call Control Services Telephony call control ...

Table 2.6 IP PBX and Centrex Service Examples Using SIP Call Hold Consultation Hold Unattended Transfer Call Forwarding, Uncondi ...

■■ Java platformshave been extended for the development of SIP [17]. There is extensive literature available on this topic as we ...

Table 2.7 (continued) Accessing ISDN and PSTN IN services from SIP networks [20] SIP and QSIG for circuit-switched PBX interwork ...