1. Future of Roaming Looking at the Mobile and Hubbing Village Lahore, 2 nd April 2007 Belgacom International Carrier Services SA Quentin de Montblanc +32 2 547 52 74 Hans Penu +65 943 01 700

2. Belgacom International Carrier Services 2 Agenda The International Mobile Landscape Enhancing Roaming & Inter-Working The Open Connectivity Context The IP Evolution Going Forward The International Mobile Landscape Enhancing Roaming & Inter-Working The Open Connectivity Context The IP Evolution Going Forward

3. Belgacom International Carrier Services 3 Looking at the Mobile Village

4. Belgacom International Carrier Services 4 Universal services, not islands… Community of 680+ Mobile Operators & 2 Bio+ subscribers MNO Focus on coverage for new services Mature Market Tier 1 Closed policy to prevent fraud & spam Mature Market Tier 2/3 Limited volumes to justify expansion Developing Market Tier 1 New entrant willing to sign Roaming/IW agreements Developing Market Tier 2/3

5. Belgacom International Carrier Services 5 International User Experience GPRS, WAP, MMS, IMS Roaming in ~25 networks Video Telephony ~20 networks Video Telephony ~20 networks MMS Inter-Working ~20 networks MMS Inter-Working ~20 networks Source : BICS Voice Inter-Working ~650 networks Voice, SMS Roaming ~250 networks SMS Inter-Working ~250 networks SMS Inter-Working ~250 networks IMS Inter-Working Yet to start ! IMS Inter-Working Yet to start !

6. Belgacom International Carrier Services 6 Mobile Operators Challenges AgreementsDeploymentSupportBilling Fraud Enhance service offering & extend the reach

7. Belgacom International Carrier Services 7 Filling the gaps User Experience vs International Reach Source : BICS Expand participation to grow international reach

8. Belgacom International Carrier Services 8 Enhancing Inter-working

9. Belgacom International Carrier Services 9 Enhancing the Inter-Working Fabric For SMS & MMS 1 agreement with the Hub (AA19, AA70) 1 technical connection 1 financial relation For SMS & MMS 1 agreement with the Hub (AA19, AA70) 1 technical connection 1 financial relation Multilateral Bilaterals Roaming Partners Non-Roaming Partners Non-GSM Networks HUB

10. Belgacom International Carrier Services 10 Towards MMS Usage Take-Up National Growth Drivers - MMS-enabled handset penetration In 2007, almost 100% of new handsets sold will be MMS-enabled - Adoption of clear & affordable service prices - Improved User experience - Effective Marketing - Value Added Services Content-to-Person applications Mobile e-mail Networks interoperability - Direct correlation between traffic and reach - National A reality in 60 countries - International 180 operators linked trough MMS hubbing National Growth Drivers - MMS-enabled handset penetration In 2007, almost 100% of new handsets sold will be MMS-enabled - Adoption of clear & affordable service prices - Improved User experience - Effective Marketing - Value Added Services Content-to-Person applications Mobile e-mail Networks interoperability - Direct correlation between traffic and reach - National A reality in 60 countries - International 180 operators linked trough MMS hubbing Clear Take off is now reality

11. Belgacom International Carrier Services 11 Enhancing Roaming

12. Belgacom International Carrier Services 12 Enhancing the Roaming Fabric Three main solutions in the market Sponsor Model, Bi-lateral Efficiency & The Hub approach Open Connectivity proposes Single IMSI Roaming Hub Model as a long-term viable solution Three main solutions in the market Sponsor Model, Bi-lateral Efficiency & The Hub approach Open Connectivity proposes Single IMSI Roaming Hub Model as a long-term viable solution Solution Provider Settlement Costs Network Faults PMN CPMN B PMN PMN A PMN SettlementTesting Signalling Network Faults Solution Provider Network Faults SettlementTesting Signalling

13. Belgacom International Carrier Services 13 Enhancing the Roaming Fabric Case 1 - Sponsoring new entrants Sponsor MNO A Inbound support possible Combination of sponsors Sharing/discounts within Alliances Single testing Restrict Visibility SIM card update with IMSI stack Sponsor for each Participant Notifications to Roaming Partners Home MNO B Hub Agreements & IMSI Visited MNO C IMSI A Signalling IMSI ASignalling IMSI B TAP IMSI A TAP IMSI A TAP IMSI B € € € Invoice

14. Belgacom International Carrier Services 14 Enhancing the Roaming Fabric Case 2 - Bi-lateral Automation Complements clearing solution Efficient use of existing guidelines Up-to-date Com. & Tech. Database Transparency Financial liability not covered Testing for each bi-lateral relation Bi-lateral agreements required Time consuming for new entrants Roaming Database Home MNO A Hub testing Agreements & IR.21 Visited MNO B IMSI A Signalling IMSI A TAP IMSI A Agreements & IR.21 € Invoice

15. Belgacom International Carrier Services 15 Enhancing the Roaming Fabric Case 3 - The “Broker” Model Home MNO A Hub Visited MNO B IMSI A Signalling IMSI A TAP IMSI A Single interconnection & settlement Single testing between hub & MNOs Financial liability shared with hub No clearing house required Require hub interoperability New Architecture to be defined New process for Participating MNOs TAP IMSI A €€ Invoice testing

16. Belgacom International Carrier Services 16 The Open Connectivity Context

17. Belgacom International Carrier Services 17 GSMA Open Connectivity Initiative Current paradigm of bilateral relationships will unlikely meet expectations of 600+ operators going forward One-to-one needs to be replaced by a many-to-many model Global Roaming - To ensure that an operator is able to allow its customers to roam on the network of any other GSMA member. Global Inter-working - To ensure that the customers of all 3GSM networks (and in future, other technologies) can send and receive services between themselves. Optimization of Costs - To ensure cost-optimization for operators in establishing and maintaining global roaming & inter-working agreements. Current paradigm of bilateral relationships will unlikely meet expectations of 600+ operators going forward One-to-one needs to be replaced by a many-to-many model Global Roaming - To ensure that an operator is able to allow its customers to roam on the network of any other GSMA member. Global Inter-working - To ensure that the customers of all 3GSM networks (and in future, other technologies) can send and receive services between themselves. Optimization of Costs - To ensure cost-optimization for operators in establishing and maintaining global roaming & inter-working agreements.

18. Belgacom International Carrier Services 18 An EMC initiative Supported by the GSMA Board Started in March 2005 as part of the Roaming Refresh Focusing on: - - Short-term: Improving efficiency of establishing and maintaining bi-lateral inter-working and roaming agreements. - - Longer-term: Looking at new solutions, such as Hubs, to enable quick and easy establishment of new (multi-lateral) agreements. Other Hubs MNO 1 MNO 2 MNO 4 MNO 5 MNO 6 MNO 3 MNO 1 MNO 2 MNO 4 MNO 5 MNO 6 MNO 3 Hub PROVIDER Open Connectivity Project Detail

19. Belgacom International Carrier Services 19 OC High Level Requirements (1/2) Open Solution Interoperability of solutions Obligation Manage white & black lists Transparency Full visibility of transactions at commercial & technical level Cascade billing Remove need for bi-lateral settlement Efficiency Efficient use of resources and minimize network configuration End-to-end Quality of Service Measurement of KPIs and commitment on QoS (SLAs) Open Solution Interoperability of solutions Obligation Manage white & black lists Transparency Full visibility of transactions at commercial & technical level Cascade billing Remove need for bi-lateral settlement Efficiency Efficient use of resources and minimize network configuration End-to-end Quality of Service Measurement of KPIs and commitment on QoS (SLAs)

20. Belgacom International Carrier Services 20 OC High Level Requirements (2/2) Service Support Full outsourcing capabilities for O&M activities Testing Outsourcing of testing activities One relationship Need to offer One Stop Shopping solution Fraud & Security Latest tools & functionality for anti-spamming & anti-fraud Availability Continuous & reliable access to the service Service & Enabler Support Offer services individually through a single connection Service Support Full outsourcing capabilities for O&M activities Testing Outsourcing of testing activities One relationship Need to offer One Stop Shopping solution Fraud & Security Latest tools & functionality for anti-spamming & anti-fraud Availability Continuous & reliable access to the service Service & Enabler Support Offer services individually through a single connection

21. Belgacom International Carrier Services 21 Open Connectivity Status Commercial and Technical framework for Hubbing MNO Hub 3 MNO MNO A Hub 1 MNO Extended 2-way reach Termination Revenue Limited implementation Reduced testing Single investment Unique billing & settlement Open competition Trusted environment Hub 2 MNO MNO B Proof of Concept SMS successfully demonstrated in Barcelona 3GSM World Congress February 2006 (Orange, SFR, TI & Belgacom) SMS Hubbing Trial completed with 13 hub providers & 29 Mobile Operators and announced at Singapore 3GSM Congress October 2006 Proof of Concept Roaming successfully demonstrated in Barcelona GSM World Congress February 2007

22. Belgacom International Carrier Services 22 The IP Evolution

23. Belgacom International Carrier Services 23 From GRX to IPX  GRX is today ONLY a high quality “Bit Pipe”  We need to add intelligence in the networks - SIP Proxy - Session Border control - Media Gateway control (reach of fixed networks) - Monitoring and reporting platforms  High QoS and SLA’s  GRX is today ONLY a high quality “Bit Pipe”  We need to add intelligence in the networks - SIP Proxy - Session Border control - Media Gateway control (reach of fixed networks) - Monitoring and reporting platforms  High QoS and SLA’s GRX -> IPX : GRX becomes service aware !!!

24. Belgacom International Carrier Services 24 Towards an all-IP Universe BroadbandPortals Cable xSPs MVNOMVNE Mobile Operators WirelinePSTN/DSL IP INTERWORKING FABRIC

25. Belgacom International Carrier Services 25 Going Forward Interconnection amongst SMS and MMS hubs Trial Roaming Hub solution Interconnection amongst Roaming hubs Mobile Operators Connections Automated implementation of Roaming Automated roaming tests Automated update of Reference Data Electronic invoicing Interconnection amongst SMS and MMS hubs Trial Roaming Hub solution Interconnection amongst Roaming hubs Mobile Operators Connections Automated implementation of Roaming Automated roaming tests Automated update of Reference Data Electronic invoicing

26. Q & A

27. Thank You!