| The Session Initiation Protocol (SIP) is a new signaling, presence and instant messaging protocol developed to set up, modify, and tear down multimedia sessions, request and deliver presence and instant messages over the Internet [1]. This chapter covers some background for the understanding of the protocol. SIP was developed by the IETF as part of the Internet Multimedia Conferencing Architecture, and was designed to dovetail with other Internet protocols such as Transmission Control Protocol (TCP), Transmission Layer Security (TLS), User Datagram Protocol (UDP), Internet Protocol (IP), Domain Name System (DNS), and others. This organization and these related protocols will be briefly introduced. Related background topics such as Internet uniform resource indicators (URIs) and uniform resource locators (URLs), IP multicast routing, and Augmented Backus-Naur Format (ABNF) representations of protocol messages will also be covered. |
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Real-Time Embedded Systems: Optimization, Synthesis, and Networking
Embedded systems are electronic systems that include a microprocessor to
perform certain specific tasks. The microprocessor is embedded or hidden inside
these products. Embedded systems are ubiquitous. Every week millions
of tiny chips come out of factories like Freescale, Microchip, Philips, Texas
Instruments, and Mitsubishi,... | | Merritt's Neurology
The thoroughly updated Eleventh Edition of this classic retains the organization, practicality, and readability that makes Merritt's Neurology one of the most popular texts among neurologists, primary care physicians, and residents reviewing for psychiatry or neurology boards. In 171 short chapters, the book provides the... | | Professional Xcode 3 (Wrox Programmer to Programmer)
A solid guide that responds to the active interest in Apple's Xcode tools
Apple's Xcode tools are a collection of applications and frameworks that are used to develop, test, and optimize applications primarily written for Mac OS X or the iPhone. The steady increase in sales of Apple computers has triggered a strong interest... |
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