What does SIP stand for? 

Statistically Improbable Phrase

Academic & Science » Libraries

Session Initiation Protocol

Computing » Telecom -- and more...

State Implementation Plan

Governmental » State & Local

School Improvement Plan

Community » Educational

Semiconductor Intellectual Property

Governmental » Law & Legal

Systematic Investment Plan

Governmental » State & Local

School Improvement Program

Community » Educational

Soft Input Panel

Governmental » NASA -- and more...

Side Impact Protection

Governmental » Transportation -- and more...

Smds Interface Protocol

Computing » Networking -- and more...

Submission Information Package

Business » General Business -- and more...

Single In-line Package

Academic & Science » Electronics -- and more...

Structurally Insulated Panel

Governmental » NASA

Scilab Image Processing

Computing » General Computing

Standards In Practice

Governmental » US Government

Social Interactive Playtime

Community » Educational

Schools Integration Project

Community » Educational

System Improvement Program

Governmental » Military

Stay In Play

Sports

Session Initialization Protocol

Computing » Networking

State Improvement Plan

Miscellaneous » Unclassified

Software Input Panel

Computing » General Computing

Simferopol, Ukraine

Regional » Airport Codes

System Implementation Plan

Governmental » Military -- and more...

Solo In Place

Community » Music

Session Internet Protocol

Internet -- and more...

Self Initiated Program

Computing » Software

Seasonal Irrigation Program

Miscellaneous » Farming & Agriculture

Student Information Portal

Academic & Science » Universities

Special Interest Program

Governmental » US Government

Student Initiated Project

Academic & Science » Universities

Swords Into Plowshares

Miscellaneous » Unclassified

Sloan Innovation Period

Miscellaneous » Unclassified

Service Interface Point

Computing » Telecom

System Enhancement Program

Governmental » Military

Simulations In Physics

Academic & Science » Physics

Soul Influenced Product

Miscellaneous » Unclassified

Spring Intensive Program

Academic & Science » Universities

Sale In Progress

Business » General Business

Self Improvement Project

Miscellaneous » Unclassified

Stateful Inspection Of Packets

Miscellaneous » Unclassified

Standard Investment Planning

Business » Stock Exchange

Sales Inventory Purchase

Business » Accounting

Sound Improvement Platform

Miscellaneous » Unclassified

Subject, Interval, and Period

Community » Performing Arts

The Subaru Information Pages

Governmental » Transportation

Support Incident Pack

Governmental » Military

System Interface Procedure

Computing » Networking

Something In Parenthesis

Miscellaneous » Unclassified

Semper In Primis

International » Latin

Shooting Is Pointless

Governmental » Law & Legal

Sun Industries Protocol

Miscellaneous » Unclassified

Sterilization In Place

Governmental » FDA

School Improvement Process

Community » Schools

Strategic Initiatives Project

Miscellaneous » Unclassified

Savings Investment Plan

Business » Investments

Sympathetically Independent Pain

Miscellaneous » Unclassified

Securities Information Processor

Miscellaneous » Unclassified

Society for Invertebrate Pathology

Academic & Science » Societies

Saccharine Infused Prozac

Miscellaneous » Unclassified

Synchronized Integration Path

Miscellaneous » Unclassified

Session Initiated Protocol

Miscellaneous » Unclassified

Safety Implementation Plan

Miscellaneous » Unclassified

Sahwira Individual Policy

Miscellaneous » Unclassified

Salary Indemnity Plan

Miscellaneous » Unclassified

Science Internship Program

Academic & Science

Session Initiation ProtocolB

Miscellaneous » Unclassified

Simple Index Percentage

Miscellaneous » Unclassified

Simplex Ideal Peerless

Miscellaneous » Unclassified

Sociedad Interamericana de Prensa

Miscellaneous » Unclassified

Societal Impact of Pain

Miscellaneous » Unclassified

Stable isotope probing

Miscellaneous » Unclassified

Stand for In Project

Miscellaneous » Unclassified

State Implementation Plans

Miscellaneous » Unclassified

Sterilize In Place

Miscellaneous » Unclassified

Structural Insulated Panels

Miscellaneous » Unclassified

Structural Investment Plan

Business » Investments

Structurally Insulated Panels

Miscellaneous » Unclassified

Student Insurance Program

Business » Insurance

Supplementary Ideographic Plane

Miscellaneous » Unclassified

Sustainability in Practice

Miscellaneous » Unclassified

Synthesized Intelligent PIR

Miscellaneous » Unclassified

System Initiation Protocol

Miscellaneous » Unclassified

System Integrity Protection

Miscellaneous » Unclassified

Systematic Integrated Process

Miscellaneous » Unclassified

Systematic Investment Planning

Governmental » Planning -- and more...

Italian Society of Pediatrics

Academic & Science » Societies

Safer Internet Programme

Computing » IT

Samahang Innova Philippines

Miscellaneous » Automotive

Sanofi-Institut Pasteur

Medical » Laboratory

Scientific Instrument Package

Governmental » NASA

Screw in Pre-Chamber

Miscellaneous » Automotive

Scsi Interlocked Protocol

Computing » IT

Seat Indication Point

Miscellaneous » Automotive

Separation Instrument Package

Governmental » NASA

Serial Interface Processor

Computing » IT

Serial Interface Protocol

Miscellaneous » Unclassified -- and more...

Service Improvement Process

Miscellaneous » Automotive

Service Interval Prolongation

Miscellaneous » Automotive

Shelter In Place

Governmental » US Government

Sigma Pharmaceuticals Ltd

Business » ASX Symbols

Signal Image Processing

Computing » IT

Signaling Point

Computing » IT

Simple Ip

Computing » IT

Single Inline Package

Miscellaneous » Unclassified -- and more...

Single Inline Processor

Computing » IT

Single Investment Plan

Business » Stock Exchange

Smiling In Public

Internet » Chat

Società Italiana di Pediatria

Academic & Science » Societies

Società Idroelttrica Piemontese

International » Italian

Societe Internationale Pirelli

Miscellaneous » Automotive

Society of Internet Professionals

Computing » IT

Society of Investment Professionals

Business » Accounting

Source Ip

Computing » IT

Southern Irish Pride

Community

Spa Interface Processor

Computing » IT

Space Interested Person

Academic & Science » Astronomy

Special Interest Publication

Community » News & Media -- and more...

Special Issue Presentation

Community » News & Media

Speech Interface Platform

Computing » IT

Standard Interchange Protocol

Academic & Science » Libraries

Standard Interface Panel

Governmental » NASA

Strain Isolator Pad

Governmental » NASA

Strategic and Institutional Plan

Community » Non-Profit Organizations

Structural Insulated Panel

Miscellaneous » Construction -- and more...

Structural Integrity Program

Computing » IT

Summer Internship Program

Governmental » FDA

Supplementary Input Panel

Computing » IT

Survey of Institutionalized Persons

Governmental » FDA

Symantec Integration Package

Computing » IT

System Idle Process

Computing » IT

System In Package

Miscellaneous » Unclassified -- and more...

System Initialization Program

Computing » IT