2002 L eadership P l a n n i n g C o n f e r e n c e Derrick Hamilton Vice President SBC Midwest Network Services Growing Possibilities: The SBC Network

SBC Roadmap  Expanded Network Increase POP density Expand reach within LATAs  Evolve Network Architecture Continue infrastructure enhancements Hone network reliability and customer service  Enhance Service Offerings Voice over IP  Hosted IP Communications Service MPLS enabled services  Network based VPNs

FR/ATM IP Backbone San Francisco Dallas IP FR/ATM Ethernet IP FR/ATM Ethernet Single Common Core Network To Carry All Layers of Services Compressing the Existing Core Networks DWDM Core IP FR/ATM Ethernet IP FR/ATM Ethernet IP MPLS Backbone Other Protocols Core Network Vision Other Protocols

Wireless: Not Just Mobile Phones GPRS/EDGE Wi-Fi in public hotspots Wi-Fi in the Office SBC PremierServ VPN Wi-Fi in the Home

Critical Communications Needs Solved by Optical/Broadband Solutions Platforms that accommodate a variety of applications: –Traditional TDM applications (voice, data & video) –Local Area Network connectivity, Internet Access –Storage Area Networking and remote data backup –Data Center Connectivity –CAD/CAM File Transfer –Multimedia Streaming Platforms that meet communications requirements: –Capacity for high-bandwidth, high-speed, & high-reliability –Business Continuity –Mission critical data networking –Disaster recovery

High Tech Manufacturing Regional Office A 10 FC Dark Fibre Channel Extension & Dark Fibre Cost Regional Office A Enterprise HQ CAD/CAM Application: Back-up of secondary data for disaster recovery; and consolidation of distributed storage Large enterprise sites (500+ employees/site) networking FC SAN storage across data centers in a metro area CAD/CAM connectivity between locations

you?  Elegant “Future-Proof” Services IP-MPLS Backbone Flexibility at the Edge IP Business Services All Optical Solutions Integrated Wireless-Wireline Services  SBC World-Class Reliability What does this mean to

2002 L eadership P l a n n i n g C o n f e r e n c e Insert Your Name Here Insert Your Title Here Insert Your SBC Affiliate Company Here SBC: Talking Straight, Following Through