re than 90% of businesses. iBurst has also been licensed and is oper- ating in the United States and South Africa, among other places. iBurst technology has a number of important features: High broadband data speeds-iBurst supports speeds up to 1Mbps (down- link) per user, with protocol support for up to 16Mbps. Wide area coverage-iBurst's range is one of the best in the industry. It offers always-on connectivity, and the network supports full handoff. Low cost-iBurst claims to have a market-leading cost structure. Simplicity-iBurst is easy to deploy, easy to install, and easy to use. Commercialized-iBurst is operationally proven and scalable. Great capacity-Each base station sector can deliver more than 30Mbps. The iBurst technology is a pure IP, end-to-end system built on two primary components: base stations deployed by a network operator, much as in today's cel- lular mobile services, and wireless modems or PC cards that a customer uses with an existing Internet appliance, such as a notebook or desktop computer, to access the service. iBurst relies on TDD to permit downlink and uplink paths to share common spectrum. Most importantly, it uses ArrayComm's Intellicell smart antenna spatial-processing system, which enhances the signal path between the base station and customers. iBurst employs end-to-end IP-over-PPP connectivity between service providers and their customers. This means that providers already have the necessary infra- structure to support iBurst. Traffic from iBurst base stations is aggregated at a packet services switch that sends the data to the appropriate service provider. The base station is the boundary between wireless iBurst and the service provider's backhaul network. Security is handled at all layers, using a combination of MPLS and IPsec. In the end-user session, IPsec is combined with application security (e.g., HTTPS). Because iBurst supports IPv6, it can take advantage of the additional security features not available in IPv4. iBurst standardization at the wired layer conforms wholly