The Open Systems Interconnection (OSI) model is a reference model developed by the International Organization for Standardization (ISO) that "provides a common basis for the coordination of …

If you need to contact AFOSI, either to provide a tip or share a concern, consult your base phone book or call your base operator for the telephone number of your base's OSI unit.

OSI operates with a global footprint and employs people from all walks of life. Our teams span multiple regions, time zones, and cultures, enabling us to serve a wide range of markets and stakeholders.

Dec 16, 2025 · The OSI (Open Systems Interconnection) Model is a set of rules that explains how different computer systems communicate over a network. OSI Model was developed by the …

Dec 4, 2025 · The Open Systems Interconnection (OSI) model describes seven layers that computer systems use to communicate over a network. The OSI model is divided into seven distinct layers, …

The Open Systems Interconnection (OSI) model is a conceptual framework that divides network communications functions into seven layers. Sending data over a network is complex because …

OSI provides professional investigative service to commanders of all Air Force activities. Its primary responsibilities are criminal investigations and counterintelligence services.

The Air Force Office of Special Investigations (OSI or AFOSI) [5] is a U.S. federal law enforcement agency that reports directly to the Secretary of the Air Force.

Foam gaps to cracks, OSI foams provide superior insulation and sealing for any project. Reliable performance ensuring they withstand the test of time. OSI tapes offer unmatched strength and …

OSI is the lead federal investigative service for the Air Force & Space Force. OSI has a prominent role in counterintelligence, force protection and criminal investigations.