© 2010 AT&T Intellectual Property. All rights reserved. AT&T, AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. AT&T Proprietary (Internal Use Only) AT&Ts Wireless Network Improving, Expanding, Evolving and Innovating

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) AT&T – The Best Network Partner AT&T has the best technology today AT&T is in alignment with world standards AT&T has a stable, predictable growth path options AT&T uses technologies growing in acceptance – far from being sunsetted AT&T has the largest selection of device and equipment options

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Global Standards AT&Ts wireless network is built on GSM, the global standard GSM is the only wireless technology deployed in every country and territory in the Western Hemisphere Nearly 90% of subscribers globally are on GSM network technology AT&T has the largest array of world phones and devices for global roaming, including in Japan and South Korea 3 Percentage of Global subscribers per technology GSM, UMTS or HSPA 88% Other 1% CDMA 11% *of any U.S. Carrier Broadest Global Reach* One device for all 7 continents

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Result of a Vibrant Ecosystem is Wide Device Choice Source Ericsson Page 4

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) The Only U.S. based 3G network capable of simultaneous voice and data Continue working online while taking a call Mobile phone or PDA can be tethered as a modem AT&T 3G: Simultaneous Voice and Data

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Enhanced voice and data network performance Carrying Traffic on the Core Network Increasing backhaul bandwidth to route wireless traffic to the IP superhighway faster 100,000 new backhaul connections planned for installation between cell sites and IP backbone network in 2009 Substantial high-speed backhaul deployment over time to enable HSPA 7.2 and LTE IP Superhighway Backhaul © 2009 AT&T Intellectual Property. All rights reserved. This document is not an offer, commitment, representation or warranty by AT&T and is subject to change. 6

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Today GPRS 48K 7 Time 2G EDGE 237K LTE Choosing the Right Technology With GSM, devices will be backward compatible as technology evolves 3G 4G UMTS 384K HSDPA 1.8M HSPA 7.2M (planned for fall ) HSPA 3.6M Based on theoretical peak speeds. Actual speed experienced will be less. Future Deployment

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) PC World 3G Tests PCWorld and testing partner, Novarum Inc., tested the download speeds, upload speeds, and network dependability of the AT&T, Sprint, T- Mobile, and Verizon 3G networks 20 locations in each of 13 U.S. cities. Altogether we ran more than 51,000 separate tests covering 850 square miles of wireless cell coverage servicing 7 million wireless subscribers In our tests last spring, AT&T posted an average download speed of 818 kbps (kilobits per second) across 13 cities. In our tests conducted in December 2009 and January 2010, AT&Ts average download speed increased to 1410 kbps.

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) AT&T Delivered On Average 67% Speeds Notice upload speed differences Many tests how nearly double the speed

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Verizon Buckles to Pressure to Go GSM

© 2010 AT&T Intellectual Property. All rights reserved. AT&T, AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. AT&T Proprietary (Internal Use Only) AT&T Mobile Applications and Emerging Technologies

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Mobile Connections – Network Attributes Upgrade to 7.2 technology can significantly improve , browsing and video streaming experience Device must support higher speed AND backward compatibility for optimized fallback experience during new technology deployment We have 10 HSPA 7.2- compatible devices available today Page 12

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Hot, Secure, Mobile Applications GPS Tracking: Tracking buses or other district vehicles can identify route issues, reduce waste by reducing idling times, ensure employees are where they are supposed to be. Asset Tracking: Small, magnetic devices can be attached to equipment and anything else that tends to go missing or is more valuable than the cost of the tracking service. Workflow Management: Track processes and transactions from order issuing to job completion and all steps in between on your mobile device Content Delivery: New web-based technologies allow relatively quick and easy access to most datasystems which can then be delivered to your mobile device. Examples: Student Information, Library Resources, HR and PayRoll. Page 13

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) 14 AT&T Satellite Augmented Mobile service Integrated solution will provide AT&T customers with cellular + satellite voice and data in a single device – Scheduled availability in Q Innovative new solution will be available only from AT&T Key benefits – Integrated device: TerreStar Genus Windows Mobile 6.5 smartphone device for both everyday wireless voice + data usage plus the ability to access the satellite network – Ease of Use: users phone number and will be the same for purposes of cellular and satellite networks – Single bill: AT&T will bill for the AT&T wireless voice & data service, the feature and all satellite roaming charges – all on a single monthly invoice – Expanded reach: will combine primary terrestrial cellular connectivity with the ability to use the satellite network as backup in the US, plus offshore*; may also be available in Canada later – Cost effective: Lower costs than traditional Mobile Satellite Services Satellite coverage footprint AT&T wireless network Windows Mobile cellular + satellite smartphone *Satellite access is only available outdoors and is subject to other availability, limitations and restrictions

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) K-12 Technologies to Watch The 2009 Horizon Report identified six technologies to watch: 1.Collaborative Environments (1 yr) 2.Online Communication Tools (1 yr) 3.Mobiles (2-3 yrs) 4.Cloud Computing (2-3 yrs) 5.Smart Objects (4-5 yrs) 6.Personal Web (4-5 yrs) Horizon Report:

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Business Drivers for Education Service more students with fewer teachers Extend teaching and tutoring to other schools, classes Enable 24/7 access to course content Allow student to study when they are ready (flexible scheduling) Accommodate special needs: o Distance, work obligations, illness, or other at risk traits o Accelerated program for graduation o Students preferring to home-school o Credit recovery for graduation o Dual enrollment Page 16

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Ubiquitous Connections – Laptop Connect Data coverage where ever a phone call can be made on AT&T Mobility Network 98% of population points of presence covered Laptop Connect includes wi-fi access at AT&T branded hotspots including Starbucks, McDonalds, etc. Communication Manager Software = simple interface – no training required – free software Can be configured to auto-connect on start

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Safe Connections – Web Filtering Hosted Software as a Service – Client Software Secures Device Protects network and students from undesirable Web content Drives productivity by limiting time spent on recreational surfing Optimize network resources by reducing bandwidth congestion Monitor online activity with comprehensive reporting Page 18

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Collaborative Connections – AT&T Connect Text chat Whiteboard Clean Interface Virtual Training Share Applications Video Conferencing Record and Archive Webcasts (1 to Many) Share Presentation Rights Reporting (usage tracking) Share and Edit Documents Over the Shoulder (Remote Control) Integration with , scheduling, portals Page 19

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) AT&T Connect – Theres an app for that! View Whiteboard, Chat, Emoticons, and Participants Use invite to connect Take snapshots More to come! Page 20

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Connections in the Cloud on-demand services virtualized managed reliable highly scalable accessed as a service shared computing resources

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Connections in the Cloud on-demand services virtualized managed reliable highly scalable accessed as a service shared computing resources

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Cloud Computing Drivers Avoid capital expenditure on hardware, software, and services Immediate access to a broad range of applications Shared infrastructure and costs Low management overhead Low barrier to entry Increased storage Highly automated Flexible, Mobile Allows IT to shift focus Products of work and tools are accessible anywhere, anytime

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Fiscal Savings or ROI? We can help. Total Cost of Ownership (TCO) Return on Investment (ROI) Whether Managed Services make sense for you Provide access to E-rate Subject Matter Experts Conduct strategic workshops to determine project readiness And more … Page 24

© 2010 AT&T Intellectual Property. All rights reserved. AT&T Proprietary (Internal Use Only) Thank You! 25