Hotspot 2.0, also known as HS2 and Wi-Fi Certified Passpoint,
[14] is an approach to public access Wi-Fi by the
Wi-Fi Alliance. The idea is for mobile devices to automatically join a Wi-Fi subscriber service whenever the user enters a Hotspot 2.0 area, in order to provide better bandwidth and services-on-demand to end-users and relieve carrier infrastructure of some traffic.
Hotspot 2.0 is based on the
IEEE 802.11u standard, which is a set of protocols published in 2011 to
enable cellular-like roaming. If the device supports 802.11u and is subscribed to a Hotspot 2.0 service it will automatically connect and roam.