Software Radio Infrastructure Solutions for Caribbean Carriers Vanu Bose July 16, 2008

1. Software Radio Infrastructure Solutions for Caribbean Carriers Vanu Bose July 16, 2008

2. Vanu has Pioneered Software Radio Technology • History • Evolved from groundbreaking software radio research at MIT • Company founded in 1998 by Dr. Vanu Bose • 90 employees • Offices in Cambridge, MA, Bangalore, India & New Delhi, India • Industry Awards • Top 25 Emerging Technology companies, SmartTechie, SiliconIndia, 2008 • Mass NetComm Product of the Year, 2008 • Chosen IEEE Spectrum Magazine’s 2006 “Wireless Winner”, 1/2007 • GSM Association Technology Award for Most Innovative Infrastructure, 2005 • SDR Forum Industry Achievement Award for 2005 • Ten Coolest Companies Award by Telecommunication Magazine, 2005 • World Economic Forum Technology Pioneer, 2004 • Wall Street Journal Technology Innovation Awards: Runner Up in the Wireless Category, 2004 • Mass High Tech All Star Award, Oct. 24, 2003

3. Agenda • Anywave Overview • Multi-Standard Business Case • Hosted Switching Service • Reduced backhaul costs for remote and rural sites • VoIP Core compatibility

4. Anywave has Unique Benefits and Capabilities • “…the first step in what may prove to be a radio technology revolution.” • -Michael Powell, FCC Chairman commenting on first ever FCC certification for a software-defined radio granted to Vanu, Inc. • Run multiple standards simultaneously • Dual mode (GSM/CDMA) product is deployed and operational • Only infrastructure product to support multiple standards simultaneously • Cost-effective solutions for remote or rural site deployments • Reduce OPEX for sites requiring satellite backhaul • Standards upgrades are software downloads • Download new software, rather than forklift upgrade to new standards

5. Technology Overview - The Vanu Anywave Solution Vanu Anywave Radio Access Network (RAN) • Multiple cellular standards operating at the same time • Add new wireless standards through remote software-only downloads • Compatible with legacy circuit switched and IP-based core networks PSTN Base Station Controller (BSC/RNC) Mobile Switching Center (MSC) Base Transceiver Station (BTS) Packet Control Unit/Function (PCU/PCF) GPRS/Packet Data Service Node (GSN/PDSN) IP

6. Anywave: Multi-Standards on a Single Network Vanu’s open standards approach enables faster deployments while future-proofing the network for remote additions of new standards and additional capacity Waveforms are digitized into IP packets and sent via GigE to be processed for any technology RF Head per frequency band Single BTS server can support multiple wireless standards in any frequency band Single BSC server can support multiple wireless standards in any frequency band

7. Case Study: Mid-Tex Cellular Key Business Driver: Multi-Standard to increase roaming revenue • Background: • 8,000 square miles of coverage w/100K POPs in rural Texas • Mid-Tex wanted to economically upgrade their cellular system from analog to digital • Long distances between cell sites makes site visits very costly • Needed a technology that could accommodate multiple standards to increase their roaming revenues • The Challenge: • Cost-effectively migrate existing analog subscribers to GSM while providing a migration path to CDMA & other future standards • The Solution: • Migrated TDMA subscribers to Vanu’s GSM voice & GPRS data • Added CDMA a year later via remote software downloads • Backhaul is ½ the cost of separate systems

8. Multi-Standard Caribbean Roaming Revenue Opportunities • Many GSM operators in the Caribbean are not capturing the CDMA roaming revenue opportunity… & vice versa • New entrants can offer a combined GSM/CDMA service, using one standard as primary service for local subscribers & both for “roaming” tourists • Additional standards (EV-DO, UMTS, etc) can be added to the existing Vanu platform Source: Signals Telecom Consulting (San Juan Puerto Rico -2005)

9. GSM / CDMA Hosted Switch Service A hosted core network enables operation of multiple technologies without the large upfront CAPEX

10. Vanu’s Satellite Backhaul Solution Traditional Approach Vanu Approach • Opportunity • Expand cellular service in rural areas Challenges • Cost of Bandwidth – connectivity • Satellite access : $US 2 - 5 K / month • Voice delay introduced by satellite • Traffic pattern • Up to 80% of the calls, originate and terminate in same town GSM (legacy) • If one mobile calls another mobile, it requires all voice and signaling traffic to be routed back to the MSC for the duration of the call– very costly • Up to 70% of monthly satellite cost eliminated • Improved voice quality without satellite latency

11. Case Study: GCI Communication • Background: • Alaska’s largest telecommunications firm, providing local, long distance, wireless, cable TV & Internet services • Deploying a Vanu GSM solution to bring wireless communications to over 200 remotely located villages across the state of Alaska– islands of coverage • The Challenge: • Need a cost-effective solution for remote sites where cellular coverage hasn’t previously existed • Cost-effective migration path to new technologies • The Solution: • Deployed Vanu’s GSM Software Radio at each cell site with the ability to add CDMA & other future standards • Capacity can be increased or moved to other sites remotely via software downloads • IP satellite backhaul

12. Vanu VoIP Core Solution For Current VoIP providers: • Capitalize on existing network resources to provide new services without large capital expenses • Leverage existing switch, billing system, and delivery platform to support both wireline and wireless subscribers For Greenfield Wireless Network Deployments: • VoIP switching infrastructure is significantly lower cost than traditional circuit switching • Flexibility to add wireline service quickly and seamlessly

13. Network Architecture HLR SS 7 Mavenir mOne Convergence Vanu Platform GSM / CDMA BTS VLR / HLR GW SMSC MMSC Internet Vanu WAP GW GSM / CDMA BSC / TRAU / PCU MGW Vanu SGSN / GGSN / GSM / CDMA BTS PDSN VoIP Switch PSTN AAA

14. Thank You One System – Multiple Standards – New Revenue Sources