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1 © 2004 Cisco Systems, Inc. All rights reserved. Session Number Presentation_ID Voice over IP Robert Warnke

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Page 1: VoIP Basics SCTE

1© 2004 Cisco Systems, Inc. All rights reserved.Session NumberPresentation_ID

Voice over IP

Robert Warnke

Page 2: VoIP Basics SCTE

222© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Agenda

• Voice over IP Fundamentals• PacketCable Overview• PacketCable Multimedia• Current Status of PacketCable Residential VoIP

Solution

Page 3: VoIP Basics SCTE

333© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Why Voice over IP?

• Traditional TDM– High recurring maintenance costs

– Monolithic switch design with proprietary interfaces

– Uses dedicated, voice-only bandwidth in HFC network

• IP– Many services, one network

– Leverages existing data infrastructure

– Enhanced services

– Open standards

Page 4: VoIP Basics SCTE

444© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Why VoIP over Cable?

• Deployed architecture– Existing Physical network

– Existing Data Network

– Available bandwidth

• Widely accepted standards– DOCSIS, Euro-DOCSIS

– Enables construction of networks with “Best of breed” equipment – don’t have to buy everything from one vendor

• Provides MSO’s with “Triple Play” of Video, Data and Voice helping to reduce customer churn

Page 5: VoIP Basics SCTE

555© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Traditional Telephony Network

IMT

STPSTP

SCPSCP

Class 5Class 5

Class 4 TandemClass 4 Tandem Class 4 TandemClass 4 Tandem

Class 5Class 5

STPSTP

STPSTPSTPSTP

IMTIMT

GR-303 GR-303

GR-303 GR-303

RDTRDT

COTCOT

RDTRDT

COTCOT

Twisted Pair Twisted Pair

Page 6: VoIP Basics SCTE

666© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Traditional Telephony Network

• Class 5 Switch– Provides ‘line-side’ connectivity

– Implements call features (*69, *72, Call-waiting, etc.)

– Acts as SS7 Signaling Switch Point (SSP)

– Bearer traffic carried on Inter-Machine Trunks (IMT)

• Line Side Concentration– Facilitated by GR-303

– 4 to 1 concentration – 4 subscribers per DS0

– RDT aggregates analog twisted-pair lines

• End-to-end connection– DS0 (64kbps PCM) is allocated on all links in network for

duration of call, forming a ‘virtual circuit’.

Page 7: VoIP Basics SCTE

777© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

VoIP and Traditional Telephony Network Interconnection

IMT

STPSTP

SCPSCP

Class 5Class 5

Class 4 TandemClass 4 Tandem Class 4 TandemClass 4 Tandem

Class 5Class 5

STPSTPSTPSTPSTPSTP

IMTIMT

GR-303 GR-303

GR-303 GR-303

RDTRDT

COTCOT

RDTRDT

COTCOT

Provider BackboneHFC Plant

DOCSIS 1.1DOCSIS 1.1

CMTS CMTSHFC Plant

NCS EMTANCS EMTA

Signaling GW

MG

V

CMS/SoftSwitch MGC

Page 8: VoIP Basics SCTE

888© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Voice Sampling and CODEC’s

• Digitally encoded audio – Audio is sampled at 8000 samples/sec– Samples for regular time intervals (‘time slices’) are

assembled into frames, frame size varies according to Codec (codec = coder/decoder)

– Sample data may be compressed depending on Codec

• Example Codecs– G.711 – corresponds to PSTN DS0 64kbps – low complexity– G.729A – 8x compressed - 8kbps - medium complexity– G.729E – enhanced – 11.8kbps – high complexity– G.728 – 16kbps – high complexity

• Each packetization interval, sampled audio is encapsulated into an IP packet and transmitted

Page 9: VoIP Basics SCTE

999© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Packetization Interval Tradeoffs

• Short interval– Lowers end-to-end latency

– Lost packet contains smaller amount of actual voice data, less impact on voice quality

– Higher overhead, less efficient use of network bandwidth

• Long interval– Greater network bandwidth efficiency

– Fewer packets = less stress on packet forwarding network elements

• Most deployments use 20ms packetization interval

Page 10: VoIP Basics SCTE

101010© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

VoIP Transport

• Packet Encapsulation– RTP – Real Time Protocol

• Provides timestamp and packet sequence numbering so destination applications can reassemble and playback speech

– UDP – User Datagram Protocol• Provides port number addressing, so that the correct

destination application can receive the packet• Provides data integrity via CRC (Cyclic Redundancy

Check)– IP – Internet Protocol

• Provides routing info for packets to get to appropriate destination

• Provides packet prioritization

Page 11: VoIP Basics SCTE

111111© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Building a Voice over IP Packet(G.711u, 20ms)

12 160802.3 IP UDP Voice DataRTP

820186DOCSIS

MAC

20 ms 20 ms20 ms

= 224 bytes

Page 12: VoIP Basics SCTE

121212© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Network Requirements

• Deliver a service that approximates that provided by the synchronous PSTN, on an inherently asynchronous IP network

• In simplest terms, ensure the following:– Low latency (minimal delay in delivering packets)

– Low jitter (expected arrival vs. actual arrival time)

– Very few dropped packets

Page 13: VoIP Basics SCTE

131313© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Agenda

• Voice over IP Fundamentals• PacketCable Overview• PacketCable Multimedia • Current Status of PacketCable Residential VoIP

Solution

Page 14: VoIP Basics SCTE

141414© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable Overview

• Founded in late 1997 to address the need for a multimedia architecture

• Requires a DOCSIS 1.1 access network with cable modem and CMTS as the core delivery components

• Addresses issues such as:–Signaling for services

–Media transport at variable QoS (Quality of Service) levels

–Security

–Provisioning of the client device

–Billing

–Network Management

Page 15: VoIP Basics SCTE

151515© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Packet Cable Architecture Highlights

• Focus is on a standards based solution

• Flexible Architecture, ability to “plug and play” different components

– Each functional element of the solution is described individually, allowing for the MSOs to implement best of breed

– At the same time credence has to be given to a solution that is also operable as one end to end solution, and that needs to be weighed when defining the solution

• PacketCable certifies different features and functionality during its certification waves

– Cert Waves include CMS, MGC, MGW, eMTA, Calea etc

– Basic Interoperability is tested

Page 16: VoIP Basics SCTE

161616© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable Reference Architecture

The Switch and Gateway Components are Fundamental to Call Control and Speech Transmission

The Switch and Gateway Components are Fundamental to Call Control and Speech Transmission

SS7

Page 17: VoIP Basics SCTE

171717© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable™ Network Architecture

Provider Backbone

HFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS/SoftSwitch

MGC

DOCSIS 1.1DOCSIS 1.1

CMTS

Billing EventsVMCONF

SRVANNSRV

Media Servers

CALEA

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

Provisioning Server

Provisioning

CUST. DB

DNS/DHCPTFTP

TODKDCSignaling

Voice Path

Page 18: VoIP Basics SCTE

181818© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Customer Premises Equipment (CPE)

• MTA has specialized Telephony hardware and software

• CPE is considered outside the trust boundary

• Three types – Embedded (inside house), NID (outside house), Non-Embedded

• Black-phone (RJ-11)) capability with support for standard audio codec speeds (e.g. G.711, G.729E, G.728)

• Supports secure provisioning from the back office

• NCS (Network-based Call Signaling) to the CMS (Call Management Server) –based on MGCP (Media Gateway Control Protocol)

• Support for QoS – interaction with DOCSIS-level QoS is required

Provider Backbone

HFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS/SoftSwitch

MGC

DOCSIS 1.1DOCSIS 1.1

CMTS

VMCONFSRV

ANNSRVMedia Servers

CALEA

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

Provisiong Server

Provisioning

CUST. DB

DNS/DHCPTFTP

TODKDC

Page 19: VoIP Basics SCTE

191919© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Headend (CMTS)• CMTS (Cable Modem

Termination System) provides the DOCSIS 1.1 access to CMson the HFC network

• Provides connectivity to the Managed IP Network

• CMTS is the first entity within the trust boundary

• Support for Electronic Surveillance as required by CALEA

• CMTS plays a central role in setting up QoS.• PacketCable uses dynamic QoS (dQoS)

• Uses DOCSIS mechanisms on the access side, and IP (e.g. DSCP) on the core

• Implemented using gates, functional components that classify and enforce QoSpolicy per voice session as directed by a gate controller

• Event messages are generated for billing purposes (QoS info only)

Provider Backbone

HFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS/SoftSwitch

MGC

DOCSIS 1.1DOCSIS 1.1

CMTS

VMCONFSRV

ANNSRVMedia Servers

CALEA

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

Provisiong Server

Provisioning

CUST. DB

DNS/DHCPTFTP

TODKDC

Page 20: VoIP Basics SCTE

202020© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Provider Backbone

PacketCable functionality on the CMTS

DOCSIS 1.1DOCSIS 1.1

CMTS

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

CALEADF

DQoS Gate Database

HFC Plant

CMSGate

Controller

COPSGate

Control

RKS

RadiusEventMsgs

RTPMulticast

Dynamic Service Policy Enforcement

Page 21: VoIP Basics SCTE

212121© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Call Management Server (SoftSwitch)

• Provides call control and signaling (NCS, MGCP) for setting up voice sessions and invoking telephony features

• Maintains the state of all calls. Provides Line Side Features (e.g., Call Forward)

• Includes a Gate Controller initiating DQoS set-up

• Supports call routing both on-net (terminating on an IP endpoint) and off-net (routed to the PSTN – Public Switched Telephony Network)

• Generates most of the event messages used for billing per voice session

• Enables Electronic Surveillance as required by CALEA

• May support such telephony features as directory listings, local number portability, E911

Provider Backbone

HFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS/SoftSwitch

MGC

DOCSIS 1.1DOCSIS 1.1

CMTS

VMCONFSRV

ANNSRVMedia Servers

CALEA

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

Provisiong Server

Provisioning

CUST. DB

DNS/DHCPTFTP

TODKDC

Page 22: VoIP Basics SCTE

222222© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PSTN Connectivity

• MGC (Media Gateway Controller) manages access to the PSTN

• MG (Media Gateway) provides bearer channel access to the PSTN (e.g., T1 trunks)

• SG (Signaling Gateway) provides signaling to an SS7 network

• MGC is often part of the CMS – controls the MG and SG using PacketCable-defined signaling protocols and maintains call state

• Generates event messages (interconnect-related) used for billing per voice session

• Enables Electronic Surveillance as required by CALEA

Provider Backbone

HFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS/SoftSwitch

MGC

DOCSIS 1.1DOCSIS 1.1

CMTS

VMCONFSRV

ANNSRVMedia Servers

CALEA

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

Provisiong Server

Provisioning

CUST. DB

DNS/DHCPTFTP

TODKDC

Page 23: VoIP Basics SCTE

232323© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Provider Backbone

HFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS/SoftSwitch

MGC

DOCSIS 1.1DOCSIS 1.1

CMTS

VMCONFSRV

ANNSRVMedia Servers

CALEA

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

Provisiong Server

Provisioning

CUST. DB

DNS/DHCPTFTP

TODKDC

Back-office Server Components

•ANS (Announcement Server) manages and plays customized informational messages

•Consists of an ANC (Announcement Controller) and an ANP (Announcement Player)

•CALEA Server allows for lawful electronic surveillance to be initiated:•Provides a gateway to the law enforcement entity (e.g., the FBI)

•Initiates surveillance per subscriber with the CMS

•Collects call detail information from the CMS, CMTS, and PSTN gateway

•Collects call content information from the CMTS and PSTN gateway

•Other back-office servers may include servers for such functions as voicemail and directory listing

Page 24: VoIP Basics SCTE

242424© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Operations Support Systems (OSS) Components

• RKS (Record Keeping Server) collects event messages From CMS, MGC and CMTS and interfaces with a billing system

• DHCP server allocates IP addresses

• DNS is required for naming the PacketCable components

• KDC (Key Distribution Server) for security keys

• A provisioning server supporting SNMP-V3 drives the MTA initialization and provisioning from subscriber data using PacketCable Provisioning MIBs.

• CMS provisioning support is described but not fully specified

• TFTP is used to download device configuration files (driven by provisioning)

• Network Management at the DOCSIS level is required. Minimal PacketCable-specific MIBs exist for network management, fault and performance.

Provider Backbone

HFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS/SoftSwitch

MGC

DOCSIS 1.1DOCSIS 1.1

CMTS

VMCONFSRV

ANNSRVMedia Servers

CALEA

NCS EMTA (NID)

NCS EMTA

CM

NCS MTA

Provisiong Server

Provisioning

CUST. DB

DNS/DHCPTFTP

TODKDC

Page 25: VoIP Basics SCTE

252525© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Interfaces Defined by PacketCable

• Network-Based Call Signaling (NCS) – Interface between MTA and CMS, a MGCP profile

• Trunking Gateway Control Protocol (TGCP) – Interface between MG and MGC, a MGCP profile

• Event Messages Interfaces – event message carries network info over RADIUS for CDR (from CMS, CMTS, & MGC to RKS) & CALEA (from CMS, CMTS, & MGC to DF)

• Dynamic QoS Specification (DQoS) – various QoSinterfaces defined between PacketCable components.

• Common Open Policy Service (COPS) – Transports DQoS between Gate Controller (QoS management component in CMS) and CMTS (IETF RFC 2748)

Page 26: VoIP Basics SCTE

262626© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Voice Signaling Interfaces

InternetInternet

CMS/MGCCMS/MGC

Cable UserCable User

MTA

Cable IP Infrastructure

Announcement, VM and IVR Server

911 AT, OPS

MF, FGD

CALEA

PSTN

Class 4/ EOIMT

SS7 A-Link

MMMM

STPSTP

MGW

NCS

SIPTGCP

Cable UserCable User

MTA

Router

COPSSSH

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272727© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Bearer/Data Path

InternetInternet

CMS/MGCCMS/MGC

Cable UserCable User

MTA

Cable IP Infrastructure

MF, FGD911 ATOPS

CALEA

PSTN

Class 4/ EOIMT

SS7 A-Link STPSTP

MGW

Cable UserCable User

MTA

Router

Internet DataVoice RTP

MMMM

Announcement, VM and IVR Server

Page 28: VoIP Basics SCTE

282828© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Bearer Traffic Highlights

• Bearer traffic goes directly to the trunking gateway for off-net calls or to the terminating MTA for on-net calls

• Traffic follows the best path defined by the network and the IP routing protocols

• Bearer Traffic is not forced through a central location but rather through the optimum path to its ultimate destination, minimizing jitter and delay

Page 29: VoIP Basics SCTE

292929© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable DQoS

• Dynamic Quality of Service, arguably the single most important PacketCable specification

• Creates an association between application specific signaling (NCS), subscriber information, and use of DOCSIS 1.1 QoS

• Participating network elements include CMS, CMTS and eMTA

• Introduces Concepts of Gates on the CMTS– COPS(Common Open Policy Server) signaling for Gate-Alloc

and Gate-Set messages

– RADIUS signaling for Gate Open and Gate Close messages

Page 30: VoIP Basics SCTE

303030© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

DQoS Gates

• Ephemeral (exist _only_ for duration of call)

• Will automatically be deleted if not ‘used’eMTA _must_ send DOCSIS DSA/DSC within short time-

frame identifying Gate-ID to be used.

• CoordinatedWhen both endpoints are on the cable network, Gate Open,

Gate Close messages are sent by CMTS such that other CMTS knows far-end call leg has been constructed.

• DOCSIS DSA/DSC must be within QoS limits specified within Gate spec.

Page 31: VoIP Basics SCTE

313131© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable™ dQoS

HFC PlantDOCSIS 1.1

CMS

CMTSNCS EMTA

Initiate Call Signaling (NCS)

Allocate/Set Gate, Start Gate TimersContinue Call Sgnlg,

w/ GateID

• DSA, DSC with GateID

• CMTS verifies DSX against Gate, stops Gate Timers

DOCSIS 1.1 UGS Active !

Page 32: VoIP Basics SCTE

323232© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable™ Electronic Surveillance

• Supported by protocol elements of NCS, COPS Gate signaling and TGCP

• CMS is made aware of subject under surveillance, informs other elements via call signaling

• Bearer traffic is encapsulated by CMTS/MG and sent to the Delivery Function (DF)

Page 33: VoIP Basics SCTE

333333© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable™ Electronic Surveillance

Provider BackboneHFC Plant

RKS

LNP

STP

PSTN

Signaling GW

MGV

CMS

MGC

CMTS

CALEA DF

NCS EMTA

NTFY

Gate Set

Sig Start

QoS Start

NCS EMTA

NTFY Call Ans.

DSX

Call Content

Page 34: VoIP Basics SCTE

343434© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

OAM&P

TDM Switch Fabric

Control Plane

TrunkCards

CPU & Call Processing

Software

Softswitch(CMS/MGC)

PSTNGateway

SS7Network

PSTN

T1/T3IMT

A-Link

AnalogPhone

DQoS

SCP

MTA

DOCSISCMTS

HFC

Circuit Switch (TDM) to VoIP Component Decomposition

TDM Switch VoIP over Cable VoIP Control

Application Server

LineCards

NCS

IPNetwork

TGCP

SIGTRAN

SIP

SS7 GW

RTP

Page 35: VoIP Basics SCTE

353535© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Agenda

• Voice over IP Fundamentals• PacketCable Overview• PacketCable Multimedia• Current Status of PacketCable Residential VoIP

Solution

Page 36: VoIP Basics SCTE

363636© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Introducing PacketCable MultiMedia

New and Improved way of obtaining QoS!

• Signaling Agnostic

• More Generic

• MSO generated Policy Controls

• Dumb devices = less $$

Page 37: VoIP Basics SCTE

373737© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PacketCable Multimedia

• Prescribes how DQoS and BW can be used to create services that are formidable competitive weapons.

• Provides a generic application framework for enabling cable QoS for non-QoS-aware devices.

Soft-phones X-Box/Playstation gaming consolesResidential S-MTA Business-class IADs, IP Phones

• Builds upon Docsis and PacketCable*, enabling numerous voice, video, and data applications:

Bandwidth on Demand Video TelephonyLow-latency Gaming IM/Chat with QoS voice and videoGaming with Audio/Video ‘Presence-based’ voice/video

* Not required for all PCMM Apps

Page 38: VoIP Basics SCTE

383838© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

New Components

• Application ManagerAny service controlling host which has detailed knowledge of the application’s bandwidth requirements– Gaming Server – SIP Proxy Server– PacketCable CMS

• Policy ServerHost which polices Application Manager RequestsCommunicates directly with the CMTSMSO driven rule set

Page 39: VoIP Basics SCTE

393939© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 1. User A is initiatinga session to User B

“I’d like to play Quake with Brian”

Page 40: VoIP Basics SCTE

404040© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 2. AM sends 2 Gate-Set to the Policy Server (one for

each flow direction)

Gate-Set

Page 41: VoIP Basics SCTE

414141© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 3. If the AM requests pass the MSO policies, the

PS will forward the requests to the CMTS.

Gate-Set

Page 42: VoIP Basics SCTE

424242© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 4. CMTS initializes the service flows to the CM if they

pass admission control

DSA

Page 43: VoIP Basics SCTE

434343© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 5. CM responds to the CMTS

DSA-RSP

Page 44: VoIP Basics SCTE

444444© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 6. CMTS finishes the 3 way handshake

DSA- ACK

Page 45: VoIP Basics SCTE

454545© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 7. CMTS responds to the PS

Gate-Set-Ack

Page 46: VoIP Basics SCTE

464646© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 8. PS responds to the AM

Gate-Set-Ack

Page 47: VoIP Basics SCTE

474747© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Sample Call Flow (cont)

Application Manager

Policy Server

CMTS

DOCSIS 1.1 CM

You

Step 9. The AM tells the userthat the flow is ready

“Go for it”

Page 48: VoIP Basics SCTE

484848© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

PCMM benefits:

• CPE can be any application (SIP, Game Consoles)

• CM is off the shelf DOCSIS 1.1 cable modem

• Neither the CM nor the CPE need to be PacketCable QoS aware

• Policy servers allow the MSO to build flexible rules regarding which

applications are allowed

Page 49: VoIP Basics SCTE

494949© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Agenda

• Voice over IP Fundamentals• PacketCable Overview• PacketCable Multimedia• Current Status of PacketCable Residential VoIP

Solution

Page 50: VoIP Basics SCTE

505050© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Status of Packet Cable Residential Voice over Cable NA

• Over the past several years, several MSOs have been evaluating, trialing and now deploying a PacketCable compliant Residential Voice solution

• All Tier One, Two and Three MSOs have been considering a residential voice solution

• Several of the Tier Ones and smaller MSOs have already rolled out a solution

• The solution is here TODAY!– Over 300K+ subscribers are currently being served on

PacketCable based residential Voice solutions

Page 51: VoIP Basics SCTE

515151© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Technology Incubation& Validation

Technology Incubation& Validation

Status Report – Where We are TodayCable Telephony Systems Adoption Lifecycle

515151

Establish theMarket

First Customer

Launch

Operationalizeand Scale

1998 2004 2010+

Differentiate theServices

MSO Business Case/Market Validation

MSO Business Case/Market Validation

Voice Solution ValidationVoice Solution Validation

MSO OperationsOptimization

MSO OperationsOptimization

Advanced ApplicationDeployment

Advanced ApplicationDeployment

Services Scaling andPartner Enablement

Services Scaling andPartner Enablement

First Customer

Trial

1M Cisco Cable Voice

Lines(Est 7/05)

2001 2007

Cable Town Hall © 2003, Cisco Systems, Inc. All rights reserved.

MSO

A

dopt

ion

Cis

co

Ado

ptio

n Management/SystemsOperations Maturity

Management/SystemsOperations Maturity

Today

Page 52: VoIP Basics SCTE

525252© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID

Technology Incubation& Validation

Technology Incubation& Validation

Where The Industry Focus is Heading Towards

525252

Establish theMarket

First Customer

Launch

Operationalizeand Scale

1998 2004 2010+

Differentiate theServices

MSO Business Case/Market Validation

MSO Business Case/Market Validation

Voice Solution ValidationVoice Solution Validation Services Scaling andPartner Enablement

Services Scaling andPartner Enablement

First Customer

Trial

1M Cisco Cable Voice

Lines(Est 7/05)

2001 2007

Management/SystemsOperations Maturity

Management/SystemsOperations Maturity

Cable Town Hall © 2003, Cisco Systems, Inc. All rights reserved.

MSO

A

dopt

ion

Cis

co

Ado

ptio

n

MSO OperationsOptimization

MSO OperationsOptimization

Advanced ApplicationDeployment

Advanced ApplicationDeployment

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535353© 2004 Cisco Systems, Inc. All rights reserved.Presentation_ID 535353