Voice Over IP in CableVoice Over IP in Cable

Broadband Venture SeminarBroadband Venture Seminar

Doug JonesChief Architect

YAS Broadband Ventures, LLCSeptember 7, 2001

Presented for

VoIP EconomicsVoIP Economics

• 135 billion VoIP minutes in 2004• Economic advantages of IP solutions

– IP increases NPV per home from $210 to $285 (Increases over to $320 per home by 2002)¹

– Equipment cost of IP equipment estimated to decline at a more rapid rate than circuit switched (Predicted annual cost reductions of 15-20% on IP equipment)

– Convergence will requires fewer technicians to install CPE, service the customer

¹Morgan Stanley Dean Witter

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Cable VoIP ScopeCable VoIP Scope

• Develop an architecture to enable Internet Protocol (IP) based services over cable using “best of breed” technology– Build on Cable Modem standard (DOCSIS™)– Keep it Simple– Open and interoperable interfaces => multiple

suppliers• Initial focus: Voice over IP/Telephony• Migrate to other multimedia services

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PacketCable™ FrameworkPacketCable™ Framework

Broadband Modem Physical Layer

Media Access Control

Internet Protocol

PacketCable Protocols

Voice/Video TelephonyConferencing

Interactive Video/DataApplications

D O C S I S

P A C K E T C A B L E

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CM - Cable ModemMTA - Multimedia Terminal AdapterHFC - Hybrid Fiber Coax NetworkCMTS – Cable Modem Termination System

CM

EmbeddedMTA

PacketCable NetworkPacketCable Network

PSTN

PSTNGateway

CallManagement

ServerHFC

CMMTA

Back OfficeServers

Managed IPNetwork

CMTS

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End-to-End IP (Inter-domain) ArchitectureEnd-to-End IP (Inter-domain) Architecture

Cable system A Cable system B

Cable system C

Managed IPBackboneNetwork

Cable system ACity 2

Border Proxy

BorderProxy

BorderCMS

V

Gateways

V

V

Gateways

GatewaysPSTN

PSTNPSTN

City 1

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Why PacketCable?Why PacketCable?

Technology AdvantagesTechnology Advantages

• Opportunity to leverage advanced HFC plant and DOCSIS 1.1 Quality of Service– Bandwidth efficiencies of real-time VoIP

• IP Scalability – IP components can be used in conjunction w/ PSTN – Software based architecture simplifies expansion and

allows progressive deployments– Multi-vendor approach leads to rapid innovation

• Convergence of multimedia services– Combine the best characteristics of real-time voice

communications and Internet data applications

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Project Phase SummaryProject Phase Summary

• PacketCable 1.x - Core Architecture– 1.0 Baseline voice capability, single zone– 1.1 Adds primary line functionality– 1.2 Interdomain interfaces to allow

members to exchange traffic• PacketCable 2.x - Enhanced capabilities

to support multimedia services– Video telephony, interactive gaming, unified

messaging, peer-2-peer, etc.

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1.0 Interop

1.1 Interop

1.2 Interop

Project TimelineProject Timeline

1998 200120001999

PC 1.0 - Done!

PC 1.1 -Done!

2.0

PC 1.2 - Done!

Specifications

Interoperability

Under Definition

1.0 Compliance Testing

PC 1.3

2002

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Who’s involved?Who’s involved? • Cable operators finalizing plans• Several PacketCable-based technical

trials have been launched– Primary and Secondary line services– Large variety of vendor product combinations

• RFIs for PacketCable solutions have been issued by several cable operators

• PacketCable Certification Program established

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Where are the PacketCable products?Where are the PacketCable products?

• Vendors are becoming more active– Strong participation by CPE vendors in

certification waves: MTA/CMs– CMTS development expected to increase

after DOCSIS 1.1 – New visiting engineers at CableLabs

• Some components, such as the MTA and Provisioning Server, could be ready for CableLabs qualification by year end

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Products (cont.)Products (cont.)• VoIP Economy: remains challenging for

equipment manufacturers• Few purchases orders on the horizon• But…

– Industry is moving past fundamental technical challenges

– Innovative VoIP products/services are appearing– Long term commitment to end-game (IP) hasn’t

changed

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PacketCable Testing ProgramPacketCable Testing Program

• CableLabs primary focus is on PacketCable 1.0 Testing and Interoperability– Establish Baseline PacketCable Network– Complete all 1.0 Compliance Test Plans– Ability to execute all compliance tests for all

PacketCable components – Demonstrate multi-vendor interoperability

• Actively working with vendors to bring PacketCable ‘qualified’ products to market

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PacketCable Next StepsPacketCable Next Steps• Extending the Architecture

– Define additional capabilities needed to support multimedia services

– Develop migration path from circuit switched to PacketCable via GR-303 interface

– Ensure PacketCable services can be accessed throughout the home

• Continue to promote acceptance of PacketCable specifications in national and international standards bodies

• Additional PacketCable cost/financial modeling and analysis

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PacketCable SummaryPacketCable Summary

• PacketCable architecture complete, stable• Specification-based systems available 2002• CableLabs is YOUR resource for getting

interoperable solutions to market

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