The Shape of Voice a Cable Network Tom

The Shape of Voice a Cable Network Tom Kennedy VP Product Management Big. Band Networks

The Challenge • Wall street's perception is that the MSO's growth is declining. Hence no big stock gains for shareholders. • Wall Street wants an EBITDA of 15% in 2008 for MSOs. • To achieve the goal via telephony, they need to capture 60% of the residential telephony business by 2008 and that doesn't seem possible.

The Opportunity § Cable Vo. IP (and non-Vo. IP) telephony subscribers in the United States is expected to climb to 4 million by year-end 2004, up from 2. 8 million in 2003. This figure will jump to 7. 5 million (3. 7 million Vo. IP) in 2005 and 13 million (8. 9 million Vo. IP) by year-end 2006 § Source: Convergence Consulting (CED Magazine, September 2004),

The Solution • How can this be achieved? • Aggressively rollout residential, primary-line voice services • Capturing revenue on the SIP based voice traversing the cable networks today • Pursuing SMBs with T 1 over DOCSIS services.

Packet. Cable 1. 1 Voice

Packet. Cable 1. 1 Network Elements Client Device E-MTA HFC Access Network DOCSIS 1. 1 PSTN Call Management Server NCS (MGCP) Gate Controller DQo. S CMTS pkt-mm-2 Provisioning Server TFTP, DNS, DHCP, TOD Media Gateway Controller Policy Server CDC Kerberos Radius (pkt 1. 0 & MM) CCC Application Manager Managed IP Backbone Record Keeping Server (RKS) TGCP Ann-2 ISTP Media Gateway Signaling Gateway Announcement Server Kerberos CALEA Key Distribution Center Media Server OSS & Back. Office Servers & Applications Message Server

Packet. Cable Multi. Media Voice - SIP

Packet. Cable Multimedia Voice Client Device E-MTA HFC Access Network DOCSIS 1. 1 PSTN Call Management Server NCS (MGCP) Gate Controller DQo. S CMTS pkt-mm-2 Provisioning Server TFTP, DNS, DHCP, TOD Media Gateway Controller Policy Server CDC Kerberos Radius (pkt 1. 0 & MM) CCC Application Manager Managed IP Backbone Record Keeping Server (RKS) TGCP Ann-2 ISTP Media Gateway Signaling Gateway Announcement Server Kerberos CALEA Key Distribution Center Media Server OSS & Back. Office Servers & Applications Message Server

T 1 over DOCSIS

T 1 Over DOCSIS Infrastructure 4 -24 POTS CPE Router T 1 SE Ethernet IP Network T 1 SE PBX HFC FT 1 DSX-1 I A D Gig. E T 1 SE DSX-1 T 1 SE SONET/SDH T 1 Terminator/ Gateway DS 3/OC-N/STM-N PSTN

Bringing it All Together

Vo. IP Infrastructure Requirements l Stability – Infrastructure must be proven in the field / Have proven reliable hardware and software l Superior Performance – Infrastructure must be capable of supporting multiple levels and types of service with guaranteed levels of service. l Highly Available – Infrastructure must 5 9’s level of service / E 911 / CALEA (Wiretapping) l Seamless Integration - Infrastructure must comply with the industry standards / have the ability to integrate into existing network infrastructure / be proven interoperable with all of the leading Packet. Cable and non-Packet. Cable voice network elements

The Vo. IP Enabled Cable Network LAN Commercial Subscribers PSTN Vo. IP CMS / Gateway / etc CMTS Carrier-grade commercial services with precise quality of service and broad functionality such as T 1 and virtual private LAN Robust and scalable plant connectivity for downstream and upstream traffic Enterprise Voice Exchange Gig. E Plant Packet. Cable Multimedia Policy Server Residential Subscribers Data Comprehensive support for all media and any service to any IP device Video Internet Voice

Thank You Tom Kennedy VP Product Management Big. Band Networks