Delegates at this year's Mobile World Congress generated more than 19.1 terabytes of traffic through the venue's Wi-Fi network, which was one of the first large scale deployments of Hotspot 2.0 technology. Cisco, AT&T and Accuris Networks built a Hotspot 2.0 network for this year's event, which allowed users with compatible phones to securely and automatically connect to a network..

http://www.mobileeurope.co.uk/Press-Wire/hotspot-2-0-wi-fi-network-helps-mwc-to-hit-terabyte-high