Wireless Internet Service Provider Roaming (WISPr)

WISPr was chartered by the Wi-Fi Alliance to enable cellular network type roaming service within wireless ISPs. This framework requires several operational, technical and management tools and techniques to provide wireless roaming. These include the implementation of a browser-based login mechanism to provide a Universal Access Method (UAM) for any TCP/IP enabled Wi-Fi device, and a RADIUS server for authenticating users credentials and maintaining the AAA suite of services.

WISPr recommends that the AAA (authentication, authorization and accounting) as well as billing processes between WISPs be managed by an intermediary roaming service provider to ensure transparency.