CDMA2000CDMA2000 andand CDMA450CDMA450

CDMA Development Group Hong Kong November 19, 2004 CDMA Development Group

• CDG is a consortium of 100 member companies from around the world: - Operators - Network infrastructure - Network interface and access - Subscriber equipment - Value-added services - Network enhancement/optimization

• CDG Charter: To lead the rapid evolution and deployment of CDMA- based systems, based on open standards and encompassing all core architectures, to meet the needs of markets around the world - Technical service development - Deployment assistance - Information distribution CDMA Worldwide

• Rapidly expanding: 231 networks on six continents - North America: Dominant technology with 47% market share - : 25% market share and 39 operators in 20 countries - : Largest market for CDMA and rapidly expanding in China and India - Europe: Emerging market for CDMA450 • The fastest-growing technology worldwide: 227 million users - Will surpass GSM and capture the largest market share by 2009 • CDMA is the dominant platform for IMT-2000 (): CDMA2000® and WCDMA

cdmaOne and CDMA2000 Networks CDMA2000 Worldwide • Commercial deployments: - First IMT-2000 technology to be deployed (October 2000) - Today: 100 operators in 50 countries across 6 continents; 34 additional networks are in deployment • 17 commercial CDMA2000 1xEV-DO networks; 13 additional in deployment • 127 million subscribers growing at 5 million per month - 56% of CDMA subscribers use 3G networks

• More than 700 devices available

(e) CDMA2000 Benefits

• CDMA2000 represents a family of IMT-2000 standards with enhanced capabilities and a flexible evolution path - CDMA2000 1X: Doubles the capacity of CDMA and supports up to 153 kbps - CDMA2000 1xEV-DO: Optimized for data; delivers data-speeds of up to 3.1 Mbps with average 300-600 kbps in commercial networks - CDMA2000 1xEV-DV: Integrated voice and high-speed data at up to 3.1 Mbps • Benefits to operators: offers higher network efficiency, flexibility, cost efficiencies – : CDMA2000 is one of the most spectrally efficient technologies; it has up to 10 times higher capacity than some 2G technologies - High-speed data: offers some of the highest data throughput in commercial networks - Improved call quality and enhanced security - Can be deployed in most spectrum allocated to wireless services: 450 MHz, 800 MHz, 1700 MHz, 1900 MHz and 2100 MHz - Offers smooth evolution path for operators using any or 2G technology while preserving investments in their existing networks CDMA2000 demonstrates 3G benefits

END USER OPERATOR

Improved Higher gross adds, lower churn Access to New market opportunities Access to information, entertainment, Higher revenue higher productivity Wireless Data Revenue (in Korean Won - millions) 8 Thousands 7 6 5 4 3 2 CDMA2000 1xEV -DO CDMA2000 1X 1 Per month, per subscriber 0

Mar-01 Sep-01 Mar-02 Sep-02 Mar-03 Sep-03 Mar-04

SKT KTF CDMA450 • CDMA450 technology - Common name used for CDMA2000 technologies in the 450 MHz band

• Advantages: combines spectral efficiencies and high-speed capabilities of CDMA2000 with the expanded coverage of the 450 MHz band - CDMA450 provides a larger cell size (2-3 times) when compared to cell size in other cellular bands - Offers IMT-2000 services: high-quality voice and high-speed data - CDMA450 carrier size is 1.25 MHz, which makes it ideal for the 450 MHz band where there are smaller frequency assignments (e.g., NMT-450)

• Applications: Position Location Services; Push-To-Talk; Mobile ; Public Safety; Tele-Medicine; Mobile Commerce; Mobile Video Streaming; Camera and Camcorder Applications; Asset Management; Telematics; Infotainment; Audio/Ringtone Downloads; Multiplayer Gaming

• Market applications: - A cost-effective solution for countries working to achieve universal service goals - Provides a clear migration path for NMT450 operators currently orphaned at 1G - Applications for defense, public safety and security CDMA450: Growing Industry support

• Infrastructure: Commercially available from leading infrastructure providers – Lucent – Nortel – Huawei – Airvana – Ericsson – ZTE – UTStarcomm

• Handsets: – There are 12 manufacturers offering CDMA450 devices: AnyDATA, Axesstel, Compal, Giga Telecom, GTRAN Wireless, Pantech, Synertek, Hyundai Curitel, Hyundai Syscom, Topex, Huawei, ZTE – Features: as color screens, polyphonic sound, downloadable ring tones, BREW(r), Java(r), Push-to-Speak (PTS), removable user interface modules (R-UIM/SIM), GPSOne, and Short Message service (SMS Mobile Originate and Terminate) CDMA450 MHz systems worldwide

• Deployed in CDMA2000 1X and CDMA2000 1xEV-DO mode • Deployed or being deployed in , Asia, Europe, Latin America • 14 commercial networks ZAO Tver Cellular KCC Volga Telecom Russia Russia • 8 in deployment Telekom Baltija Russia Commercial Commercial • 5 trials Latvia Trial Commercial SOTEL -Video Moscow Cellular Russia Centretel Delta Telecom Russia Commercial Poland Russia Commercial Trial UralWestcom Commercial Russia Trial Belcel JV Belarus JSC Uzbektelecom Commercial Uzbekistan China Telecom China Telemobil Commercial Commercial Romania Eurotel Praha Commercial Czech Republic Laos Telecom Laos Radiomovel Commercial 4Q 2004 Portugal Iberiatel 4Q 2004 Georgia ETC Anatel Commercial Cambodia Shinawatra Vietnam Brazil Co. Ltd. TBA Trial Cambodia Uganda Telecom Commercial Unicel Telecomunicacoes Uganda PTC Brazil TBA Pakistan Mandara Selular Indonesia Trial TBA Indonesia ETC Commercial Telekom Kenya Limited Ethiopia Kenya TBA Saudi Telecom Company TBA Saudi Arabia TBA CDMA450 worldwide

• Western Europe – CEPT has approved the technology for use in EU – Licenses for CDMA450 PAMR services are being granted in some countries – Radiomovel will launch PAMR service in Portugal end of 2004 – 450 MHz license has been issued in Norway, Sweden and are in the process of awarding licenses • Eastern Europe and Russia – Romania, Zapp Mobile: Migrated from NMT450 to CDMA450 in December 2001 – Czech Republic, Eurotel: deployed CDMA2000 1xEV-DO to provide access. Captured 10% market share in 2 months – Russia: – Ministry of granted CDMA450 federal status in 2002 – SkyLink: is consolidating over 60 NMT operators to form nationwide footprint. – Delta in St. Petersburg and Moscow Cellular Communications (MCC) commercially deployed CDMA450 worldwide

Many countries are deploying CDMA450 to provide universal access: • Starcomms is building a CDMA450 network in the Federal Republic of Nigeria • Tibet Telecom Company, a division of China Telecom Group, has launched CDMA450 wireless service • Mandara Selular Indonesia (MSI) announced that it would deploy CDMA450 base under the Universal Service Obligation • PTCL in Pakistan announced plans to launch CDMA450 service to provide 200,000 telephone connections to remote areas • ECT in Vietnam is deploying a nationwide CDMA450 network to serve 300,000 users and plans to introduce CDMA2000 1xEV-DO services in Saigon • Brazil’s telecom regulator, Anatel, conducted a trial of CDMA450 wireless technology as part of its “Digital Inclusion and Universal Internet Access” project • Cambodia Shinawatra deployed CDMA450 to provide Internet access throughout Cambodia