need help in computer science

Zou90
timer Asked: May 5th, 2015

Question Description

AlnuaimiSIP-SDP paper outlineComments.docx 


this is a group project, my parts is to do the "Includes" and "Components" sections the you will find in the attachment.

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>>>Get the important technical details from both RFC 3261 and RFC 4566. The goal of the paper is to explain the concepts underlying SIP/SDP in a clear simple manner. >>> Give examples of SIP/SDP messages and explain. >>>Indicate where/how SIP/SDP are used today. SIP/SDP History>>>very brief • Feb. 1996 first drafts o Session Invitation Protocol (SIP) o Simple Conference Invitation Protocol (SCIP) • Published 1998 Multiparty Multimedia Session Control Use • • • Telecommunications/multimedia sessions i.e. VoiceOverIP, video conferencing, etc. Email streaming Media What it Does • create, manage, terminate sessions: setup and control o add, drop, transfer participants o user location: user’s name to network address o change features while session still in progress o able to negotiate so features can be agreed upon by participants o does not work with encoding/details of data, those are controlled by other protocols • methods in SIP o invite, ack, bye, cancel, register, options (p. 500 textbook) • SDP: support • Convey Information about media streams in multimedia sessions. Includes • Session name and purpose • When the sessions in active (time) • What type of media is in the session • What information is needed to receive that media. • What bandwidth to use in the session • contact information for person responsible for the session Components • User Agents o User Agent Client (UAC) ▪ Generates requests and sends them to the server o User Agent Server (UAS) ▪ Gets the requests ▪ Process the requests ▪ ▪ Generates the responses Types of servers • Proxy Server o Most Common in a SIP environment o Server sends the request to another proxy server or it sends it the recipient • Redirect Server o Redirects the request back to the client A single user agent can function as both the server and the client Relevant RFC’s • http://tools.ietf.org/html/rfc3261 Resources • http://www.siptutorial.net/SIP/index.html • http://www.siptutorial.net/SDP/SDP.pdf • https://tools.ietf.org/html/rfc4566#page-7 • http://www.iptel.org/sip/intro • http://www.cisco.com/en/US/tech/tk652/tk701/technologies_configuration_guide_cha pter09186a00800eadee.html • http://arstechnica.com/business/2010/01/voip-in-depth-an-introduction-to-the-sipprotocol-part-1/1/ • http://www.oracle.com/au/products/database/introduction-sip-part-1-085274.html
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