SIP Last modified: Friday, June 13, 2008
(1) Short for Session Initiation Protocol, it is an application-layer control protocol; a signaling protocol for Internet Telephony. SIP can establish sessions for features such as audio/videoconferencing, interactive gaming, and call forwarding to be deployed over IP networks, thus enabling service providers to integrate basic IP telephony services with Web, e-mail, and chat services. In addition to user authentication, redirect and registration services, SIP Server supports traditional telephony features such as personal mobility, time-of-day routing and call forwarding based on the geographical location of the person being called. See "The Difference Between VoIP and PSTN Systems" in the Did You Know... section of Webopedia. (2) Short for single in-line package, a type of housing for electronic components in which the connecting pins protrude from one side. Compare with DIP and PGA. A SIP is also called a Single In-line Pin Package (SIPP).
•E-mail this definition to a colleague• Sponsored listings Enterprise IP Telephony Guide - Free 96 page Enterprise IP Telephony eBook. 11 Chapters for decision makers helps you plan, implement, and deploy an IP telephony system. Learn More! For internet.com pages about SIP . Also check out the following links! Enterprise VoIP Planet  The IT Manager's Guide to Voice over IP Webopedia's "Did You Know...?" Section  Use this Webopedia knowledge section for an in-depth overview of specific technologies and occurrences in the areas of Computer Science, The Internet, and Computer Hardware and Software. Webopedia's Quick Reference Section  Use this Webopedia reference section for information on common Internet and computer facts and occurrences.	Chat Internet Protocols Internet Telephony Microprocessors DIP FC-PGA G.7xx Internet telephony IP PGA presence SIMPLE SIPphone SOJ VoIP Give Us Your Feedback Shopping SIP Products Compare Products,Prices and Stores Shop by Category: IP Phones 70 Model Matches Baby Care 17 Store Offers Toys 28 Store Offers Routers 55 Model Matches Sport and Outdoor 432 Store Offers