Editing SIP (section)

== Communications and telephony==
* [[Session Initiation Protocol]] (SIP), a communications protocol for signaling and controlling multimedia communication sessions, including voice over IP

===Networking===
* [[Service Improvement Plan]], a former program to provide a defined level of basic telephone service to all Canadians
* [[Standard Interchange Protocol]], in library systems
* System Information Packet, in the [[DMX512]] standard for stage lighting control
* [[Session Initiation Protocol]], a signaling protocol most commonly used in [[Voice over IP|Internet Telephony]]

===Software===
* [[SIP (software)]], a tool which generates C++ interface code for the programming language Python
* [[Scilab Image Processing]], an image processing toolbox
* [[Soft Input Panel]], on-screen input method for devices without standard keyboards
<!--* [[System Idle Process]], a process in Windows NT-based operating systems (fails [[WP:DABACRO]])-->
* Submission Information Packages, in the Open Archival Information System Reference Model; see [[Open Archival Information System#The OAIS environment and information model]]
* [[System Integrity Protection]], a security feature of OS X El Capitan by Apple

===Semiconductors===
* [[Semiconductor intellectual property]], a business model for licensing intellectual property
* [[Single in-line package]], for packaging electronic components
* [[System in package]], chip technology, also known as a chip stack multi-chip module
* [[Silicon photonics]], silicon semiconductor used as an optical medium