TELCORDIA TECHNOLOGIES, INC. PROPRIETARY - INTERNAL USE ONLY This document contains proprietary information that shall be distributed, routed or made available only within Telcordia, except with written permission of Telcordia. Accelerating Service Innovation with Converged Interconnection Prepared for: Telcordia Contact: Gabriela Lago Vice President, Latin America & Caribbean Interconnection Solutions Telcordia Technologies, Inc July 15, 2008

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 2 About Telcordia  Provider of network software and services to the global telecom market  Proud Bell System heritage  Global leader in number portability solutions  Authoritative interconnection routing registrar for US and Canada  Leader in service fulfillment and MVNO service delivery  Over 1800 patents issued  Leadership in standards bodies and industry forums  Deep expertise in next generation networks, operations, and services

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 3 Entering the Era of Anywhere, Anytime, and Anyhow Communications

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 4 Innovation Opportunities Abound – Promoted and Rewarded with Number Portability  Total mobile data revenue is projected to grow from $150B in 2007 to $300B in 2012 worldwide and accounts for 29% of total mobile revenue 1  IMS spending are projected to be over $7B in  VoIP adoption is growing, reaching $10B by 2011 for US residential VoIP market along with 19.2% CAGR 1.Pyramid Research, Infonetics, Telecom Industry Association, 2008 We are only at the beginning of converged service innovation

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 5 Innovations Need to be Extended Across Service Islands for Rapid Adoption Voice Unified Communications IMS SMS Mobile Instant Messaging MMS Video Communications-enabled Business Applications Location-based Services Presence Mobile Banking SMS revenue grew 900% in US in one year after SMS interconnection was enabled Data

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 6 Interconnection for Converged Services Same NeedsAdvanced Implementations Interconnect physicallyFrom TDM to IP for mobile and fixed Interconnect for voice Beyond voice to multimedia, IM, 3D animation, and more with not only network but also content/app providers What Does It Take to Deliver Converged Services End-to-End? 1. Identify target user Telephone Number still as primary identifier with others for applications 2. Find network for target user From TDM to IP – with Number Portability 3. Deliver service to target user Service-level interworking with service interconnect data exchange It’s about Delivering Services on IP!

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 7 Reality Check  IP is the underlying network for these innovative converged services  Most IP-enable services such as Voice over IP are still interconnected via PSTN  While operators are rolling out IMS infrastructure – interconnection via IP for many are still in the planning phase Interconnection is a silent missing puzzle piece to achieving the promises of innovative converged services

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 8 Industry is Responding – Beyond Technology Standardization  IP Interworking (IPI) Initiative with IP eXchange (IPX) from GSMA  i3 Forum from international wholesale operators  PacketCable IP Interconnect project from US cable operators  IP interconnect federation of Dutch MSOs… and more

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 9 Planning for Converged Interconnection – Extending Service Reach  Build out interconnect infrastructure from TDM to IP  Interconnect and interwork at service level  Manage subscriber-based service interconnection data efficiently  Telephone numbers are still key to operations and network  More decoupling of numbers and “implicit assumptions”  Need efficient, centrally management of subscriber-based service data to manage the “decoupling”  Enable extension of service reach – including those provided by application or content providers  Support number portability to further reward service innovation

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 10 Efficient Management of Service Interconnection Data – Lessons Learned  Enable operators to exchange information required to deliver services end to end  Most efficient via a centralized approach  Basic information to extend service reach  Serving provider (portability-corrected if number portability is supported)  Service(s) supported  Serving network gateway (in URI) based on the application requested (e.g., voice, video, SMS, etc.)  Expandable to other user service data, such as name, presence, location, and more  Ensure data security and validity  Rule-based data management and access

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 11 Conclusions  Promote and reward service innovation with number portability  Accelerate innovative service adoption with converged interconnection  Efficiently manage service interconnect data with a neutrally managed clearinghouse to benefit the industry eco system players

TELCORDIA PROPRIETARY - INTERNAL USE ONLY See proprietary restrictions on title page. 12 Thank You