1. SIPconnect and Cable Networks Glenn Russell Director, Business Services CableLabs February 4, 2009

2. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 1 Overview of Presentation Who is CableLabs? What drives Cable Business Services? Importance of SIPconnect

3. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 2 Who is CableLabs? Non-profit R&D consortium Members are exclusively cable system operators »CEO Governance »CTO Technical Leadership Our 50 member companies represent 82.5 million cable subscribers in North and South America, Europe and Asia

4. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 3 Our Mission Provide central forum for technical strategy Develop new technologies for cable companies Give guidance to equipment manufacturers through standards-based specifications Transfer innovation into operating companies Expand services available to cable customers

5. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 4 Large Member Companies Advance/Newhouse Cablevision Charter Comcast Cox Insight J:COM (Japan) Mediacom Rogers Cable (Canada) Shaw Cable (Canada) Time Warner Cable UPC Broadband (Europe) Videotron (Canada)

6. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 5 Smaller Market Members Armstrong Utilities BendBroadband Bresnan Communications Buckeye Cablevision Buford Media Cable America Cable One GCI Lake Hughes Cable Massillon Cable Midcontinent Communications Suddenlink Sunflower Broadband Tele-Media WinDBreak Cable

7. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 6 CableLabs Value The whole surge of the modern cable industry relies on IP telephony and DOCSIS modems. By creating standards for those technologies, CableLabs has been an enormous boon to the industry - John Malone, Chairman Liberty Media With over 16 million digital phone customers already, this innovation alone is estimated to provide $100 billion in savings to consumers and small businesses over the next five years. - Kyle McSlarrow, President, NCTA Telcos, lacking a CableLabs-like organization, probably came to market with TV offerings a couple years later than we could have. - Marilyn O'Connell, CMO Verizon Telecom

8. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 7 The Cable Modem – Over 100M served! Over 380 unique DOCSIS devices certified

9. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 8 2.4 kbps Peak Modem Throughput (bps) 1982 1986 1990 1994 1998 1 10 100 1k 300 bps 2002 2006 56 kbps 10k 100k 1M 1.2 kbps 9.6 kbps 14.4 kbps 28 kbps 33 kbps 10M 100M 1G 128 kbps 256 kbps 512 kbps 1 Mbps 5 Mbps 50 Mbps The Era of Dial-Up Modems The Era of Cable Modems The Era of Wideband Cable Modems 2010 Year ??? 2014 10G 100G 12 Mbps 200 Mbps 1 Gbps 10 Gbps 100 Gbps 2016 Constant Increase = ~1.48x every year From Broadband to Wideband Bandwidth (bps) 100 kbps 1 Mbps 11 Mbps Graph courtesy of ARRIS

10. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 9 DOCSIS 3.0 Channel Bonding: using multiple channels to get a larger logical channel Bonding 4 upstream and 4 downstream channels provides 160 Mbps downstream, 120 Mbps upstream Enables high-speed symmetric services needed by businesses, and small office

11. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 10 Cable Digital Voice Most North American cable operators offer digital voice service based on the PacketCable architecture » Over 16M cable voice subscribers » Subscriber additions and penetration rates continue to exceed expectations Customers like the service » Features, Quality, Reliability » Triple Play service bundle

12. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 11 Subscribers in Millions Source: SNL Kagan Digital Voice - More Growth Ahead

13. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 12 Charter, Time Warner To Collaborate To Support Business Services Cable TV Operators Targeting Small Business Phone Customers Means Phone Companies Lose $4 Billion Over Five Years, Says Insight Research Corp. Cable Companies Connect With Small and Midsize Businesses The Signs are Good For Cable SMB Initiatives Metro Ethernet opening enterprise doors for cable operators Charter, Time Warner To Collaborate To Support Business Services Cable TV Operators Targeting Small Business Phone Customers Means Phone Companies Lose $4 Billion Over Five Years, Says Insight Research Corp. Cable Companies Connect With Small and Midsize Businesses The Signs are Good For Cable SMB Initiatives Metro Ethernet opening enterprise doors for cable operators

14. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 13 Cable is Bullish on Business Business Services market is huge »$113 Billion annual revenue a »Small-Medium Business (SMB) market is $24B Industry Analysts: »Cable will generate $8.5 billion in commercial revenue by 2011 b –Up from $1.5B in 2006, $2.2B in 2007 –Primarily in SMB segment, Voice Services »RBOCs will lose 10 million SMB lines, $5B in revenue by 2012 c »The heart of the (Cables Business Services) opportunity – the T1 Market, where a 1.544Mb/s connection delivers only half the downstream speed of a cable modem connection but sells for 8- 10x the residential monthly price is perhaps the single most profitable market in all of telecommunications. Craig Moffett, Sanford Bernstein Research, May 1, 2006 a Buckingham Research, b Kagan Research, c Kagan Research

15. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 14 The Small Business Opportunity Cable plant passes millions of small business Customer needs are very similar to residential »Triple-play bundle: voice/data/video »Value: Basic features, good price »Voice: Local calling with unlimited LD »Data: High speed internet, email, best-effort services The Local advantage »Halo effect carry-over from cable residential Small businesses have been under-serviced »Traditionally overlooked by RBOCs who focus more on higher revenue, medium and large enterprises »CLECs and ITSPs have been successful in this market, capturing over 20% of business lines

16. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 15 Current Architecture for SMB Voice PacketCable 1.5 Cable Operator IP Network E-MTA Analog Phones CMTS Coax PSTN Gateway Call Management Server Fax Key Telephone System Analog Phones TDM PBX Analog New CPE for Businesses: E-MTAs with 2, 4, 8, 12, 24 lines Provides customer with Voice and High-speed data service Business features include hunting, call forward

17. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 16 PacketCable 2.0 and SIPconnect Broadband Access Service Provider Network (PacketCable 2.0) Business Telephony AS PSTN Gateway SIP Call Control/Routing Enterprise LAN SIP Phones SIP Cable Modem/ E-DVA SIP Soft-Phones Fax Analog Phones IP Phones SIP SIP PBX Cable Modem SIP Connect

18. Cable Television Laboratories, Inc. 2008. All Rights Reserved. Proprietary/Confidential. OCAP, OpenCable, tru2way and CableCARD are trademarks of CableLabs®. 17 Opportunity to fundamentally change the cost and service delivery structure for business voice Key Service Providers and PBX vendors involved Value of a single approach Strengthen technical specification and help accelerate vendor interoperability and deployment Cable Supports SIPconnect InteroperabilityCertificationDeploymentSpecifications Requirements