1. CDG Regional Roaming Panel Presentation Sprint Dave Wittekind Tampa, June 2007

2. www.cdg.org 1 Sprint Your Country Name United States Population(Mil) 301,139,947 Mobile Saturation 70% Top 3 Travel Countries Into Your Country 1. Canada 2. Mexico 3. United Kingdom Out of Your Country 1. Mexico 2. Canada 3. United Kingdom Source: US Dept of Commerce International Trade Administration Your Network Frequencies (MHz) 1900 only Bands A, B, D, E Roaming Subscribers (Mil) 24.7 million Your Roaming Services Voice (In/Out) Inbound and Outbound SMS (In/Out) Inbound and Outbound Packet Data (In/Out) Inbound and Outbound Other CDMA Cellular Networks Name Alltel Verizon US Cellular Frequency (MHz) 800, 1900, Analog Band A, B, D, E

3. www.cdg.org 2 Inbound Roaming - Service Coverage Legend Voice, SMS & 1xRTT Coverage EVDO Coverage

4. www.cdg.org 3 NA / Caribbean CDMA - 11 iDEN – 1 GSM – 44 Present Unilateral Roaming Partners Central / SA GSM – 24 CDMA - 9 Asia/ Pacific CDMA – 4 GSM – 59 Africa GSM – 41 Europe GSM – 106 TotalNA / CaribbeanCentral / SAEuropeAsiaAfricaMiddle East Voice3065633106634116 Data111186562236 SMS4110101 Middle East GSM – 16

5. www.cdg.org 4 Present Bilateral Roaming Partners North America/ Caribbean CDMA - 112 iDEN - 3 Central/SA CDMA - 6 iDEN - 4 Asia/ Pacific CDMA - 12 iDEN - 4 Middle East CDMA - 1 iDEN – 2 TotalNA / CaribbeanCentral / SAEuropeAsiaAfricaMiddle East Voice140115601603 Data171340000 SMS36 00000

6. www.cdg.org 5 Roaming Contacts Roaming Manager Name Kim Nittler Title Manager – Roaming Services Email Kim.Nittler@sprint.com Phone No’s Desk : 913-315-6460 Mobile : 913-707-4390 Agreements Management Contact Mark NittlerManager – Contract Negotiations Mark.A.Nittler@sprint.com Desk: 913-315-6213 Mobile: 913-486-6494 Fax: 913-523-0051 Network Testing Contact Claude HamManager – Network Operations Claude.J.Ham@sprint.com Desk: 913-762-3508 Mobile: 913-485-1736 Fax: 913-762-0116 Fraud Issues Contact John CarrManager – International Fraud John.F.Carr@sprint.com Desk: 913-315-8887 Mobile: 913-219-6612 Fax: 913-307-3489

7. www.cdg.org 6 Important Subjects Inbound Roaming Customers - Sprint Supports Voice, SMS, Packet Data ( 1xRTT & EVDO ) Number Portability Web Access to verify Line Ranges are loaded MWI and CLI while on the Sprint network –Sprint Does Not Support E-PRL Plus Code Dialing –Roaming Projects in Process TDS in CDG format for voice and data Pre-Paid Roaming Location Based Services Roaming –Biggest Issues with Implementations Carriers not supporting MDN/MSID split Voicemail redirect Data – use of non standard realms

8. www.cdg.org 7 Quality of Service CDG Documentation –# 81 – Voice and SMS Standardized TDS –#120 – Voice and SMS qualification form –#123 - International Packet Data Roaming Partner Qualification Form –#124 - International Packet Data Roaming TDS –#132 – SMS Roaming Partner Qualification Form Post Implementation Calls –View CDR usage for any errors –Verify trouble process working for outbound/inbound issues –Review any problems that may have arisen –Settlement process in place Probes Monitoring Service Levels –Domestic and international Testing with Sprint Devices –Sprint International support team in 28 countries worldwide Quarterly Quality of Service Meetings –Trouble Ticket Review –Review special projects, such as guaranteed CLI/MWI delivery, Call completion ratio success, direct access for customer care

9. Questions?

10. Thank You