The Cisco Compatible Extensions (CCX) Specification describes a list of functional extensions to the IEEE 802.11 Wireless LAN standard to support fast roaming (CCKM) with upgraded security, reliability, and diagnostic performance.
A working CCX network consists of one or more Cisco wireless access points, along with one or more CCX-enabled mobile devices.
CCX is typically deployed in industrial, enterprise, or institutional environments where 802.11 wireless connectivity or reliability is extremely important.
Typical deployments include barcode scanners in a warehouse, VoIP mobile phones in an office environment, and wearable medical devices that report patient status.
Device makers will usually license CCX technology from an approved vendor.