(1) Short for
Session Initiation Protocol, or
Session
Initiation Protocol, 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.
(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).