Mobile Data Demand is Skyrocketing FuturePresentPast 30 MB/Mo.1 GB/Mo.10+ GB/Mo. Source: Chetan Sharma Consulting

The Capacity Crunch… Customers Angered as iPhones Overload AT&T September 2, 2009 Mobile Broadband Laptop and Netbook Users to Consume 1.3 Exabytes of Video per Month Worldwide by 2017 September 3, 2009 Feds Say There’s Not Enough Spectrum For Future Smartphone Demands September 2, G Traffic in Mature Markets to Increase 20 Fold by End of 2014 September 1, 2009 Wireless Service Costs Too Much, and All But the Carriers Agree August 21, 2009

WiFi Offload is Not the Solution The Capacity Crunch… Limited range, not wide area Inconsistent customer experience Expensive for frequent use Limited security No dedicated spectrum (interference) Wi-Fi: Issues with Quality, Capacity and Coverage Wireless access, not true mobility VoIP impacts performance Constantly aging infrastructure Long refresh cycles (devices, solution) Poor infrastructural economies of scale WiFi Voice Quality Degrades even at 30m distance after 6 pair (12calls) Cisco n - Single Pair VoIP (PESQ) vs. Number of Data Traffic MS Number of MS with Data traffic PESQ 1m 10m 20m WiFi VoIP Quality starts to degrade with 10 other data traffic at 20m

Augmenting WiFi with 4G The Capacity Crunch… Wide area coverage Quality of Service Scalable Embedded Security Private spectrum 4G: Guaranteed Quality, More Capacity and better Coverage True mobility in-building, off-campus Performs well with VoIP application Newest distributed Rf solutions Potentially large device ecosystem Carrier level economies of scale