1 © 2002, cisco systems, inc. all rights reserved. h.323 voice market h.323-forum, november 2002,...

1© 2002, Cisco Systems, Inc. All rights reserved. H.323 Voice Market H.323-Forum, November 2002, New York, USA

H.323 Voice MarketH.323 Voice Market

Haluk Keskiner

Cisco Systems, Inc.

Voice Technology Group - Product MarketingFall Forum Fall Forum

20022002


Outline

• VoIP Vision

• H.323 Voice Market

• Issues with today’s VoIP Network

• How to address them

• Next Generation VoIP Network

• Conclusion


The VoIPVoIP Vision

IP network

For transport of voice, video and data

To enable access to new communication services

From any provider, from anywhere in the global network

H.323 is well established and has the maturity to make this vision a reality!


H.323 Market Status

• H.323 has clearly proven itself as the protocol of choice for global packet based multimedia communications

• Voice Market Internet Telephony Service Providers (ITSPs)

Wholesalers, Clearinghouses

Enhanced Services (PC-Phone)

• Video Market Growing migration from ISDN to H.323

Enterprise and Service Providers


What is next for the H.323 market?

• Drive minutes onto the Service Provider H.323 backbone

• Enterprise and residential markets present new revenue opportunities for the VoIP service providers

• Video conferencing and data collaboration market is growing


ITSP (Internet Telephony Service Providers)

• Need access to new markets and increase global coverage

Through interconnections with other carriers

• Address the requirements of managed enterprise services market to provide:

VoIP long distance (Toll by-pass)

Intra-enterprise connectivity (Voice VPN)

Access to new IP based services

• Most ITSPs have H.323 networks


VoIP Minutes Are Growing

• Tremendous Growth Opportunity for VoIP International VoIP expected to grow by 70% in 2002 to 18.4B MOU By 2007, international VoIP expected to grow to 127B MOU, representing 54% of all international traffic, including TDM traffic Retail MOUs: Up 206% in 2001 to 20.6 billion; estimated 2002 growth of 190% to 59.6 billion minutes. (IDC IP Telephony Market, 2002)

US Outgoing PSTN Traffic0

20

40

60

80

100

120

140M

inu

tes

of

Use

(B

illi

on

s)

Source: Probe “Voice over Packet Market,” 2002

International Voice over Packet Minutes


Enterprises

• Increasingly migrating to IP-PBX, IP-Centrex and VoIP-VPN

By the end of 2005, 28% of all business lines will support VoIP. (Yankee Group, 2002)

• Looking for ways to reduce capital and operational costs by using a common IP network integrating voice and data. Video is next.

• Private VoIP networking uses service provider networks as dumb pipes

• SIP use is accelerating.


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

2002 2003 2004 2005 2006

NA SA EMEA Asia

VoIP on Enterprise

• 55% of US Enterprises projected to adopt SP managed IP-VPNs by 2005 (Infotech, October, 2001)

• Percent of IP VPNs that will carry data and voice will grow from 13% in 2002, to 72% in 2006 (Ovum, 2002)

Source: Ovum, 2002

$M

Worldwide VPN Service Revenues

Significant opportunity for VoIP service providers!


VoIP Network TodayVoIP Network Today

PSTN

SIP wholesale

CCM

EnterpriseAVVID

Call Manager

IP Video

GKxGCP ITSP

PSTNGK

V

SIP ASP (Application

Service Provider)

H.323 VoIP Clearing house

GK

H.323 ITSP

PSTNGK

PBX V

IP-PBXIP-PBXIP-PBXIP-PBX

Enterprise

V

Enterprise

V

Enterprise

V

Enterprise

V

What are the issues ?

What are the issues ?

BackboneIP Network


Issues in a fully interconnected VoIP Network?

• Security, Network Topology Hiding

• Reliable Billing

• Call Admission Control

• Signaling Inter-working

• Preserving Quality

• Media Transparency

• Operations and diagnostics support

• Multiservice


How do we address these issues?

• Network Privacy and Security

• Call Admission Control

• Reliable Billing

• Protocol Inter-working

Introduce aIntroduce a new VoIP network elementnew VoIP network element asthe network demarcation pointnetwork demarcation point for:

IP-to-IP GatewayIP-to-IP Gateway


IP-to-IP Gateway for Managed EnterpriseIP-to-IP Gateway for Managed Enterprise

Enterprise-Enterprise-22Site-Site-AA

Enterprise-Enterprise-11Site-ASite-A

Enterprise-Enterprise-11Site-Site-BB

PSTN

GK

IP-to-IP Gateway Benefits:

• Enterprise and Service Provider networks are hidden from each other

• ITSP can perform billing and call admission control (CAC) at the edge

• Multiple enterprises can be served byone IP-to-IP Gateway

VoIP Managed VoIP Managed Enterprise Service Enterprise Service

ProviderProvider

H.323

SIP

H.323

323 - 323 323 - 323

SIP - 323 SIP - 323


IP-IP Gateway for VoIP ClearinghouseIP-IP Gateway for VoIP Clearinghouse

RASRAS

LRQ/LCF LRQ/LCF

- Call Signaling&

Media Stream- Two Call Legs

VoIP Clearing House

ITSPITSPPartner-APartner-A

ITSPITSPPartner-BPartner-B

GK

GK GK

• IP-to-IP Gateway provides billing and security demarcation

• Hides network topology and business relationships

323 - 323 323 - 323


Carrier-BVoIP Network

PSTN

Carrier-AVoIP Network

PSTN

IP-to-IP Gateway IP-to-IP Gateway for peer-to-peer connectivityfor peer-to-peer connectivity

Route Signaling LRQ/LCF

Call Signaling& Media Stream

RASRAS

GK GK

• Provides demarcation for billing

• Hides network topology, better security

• Better Call Admission Control at the edge

323 - 323 323 - 323 323 - 323 323 - 323


IP-to-IP Gateway for Video networksIP-to-IP Gateway for Video networks

RSVP-unaware video terminals

RSVP-unaware terminalsRSVP-unaware network

RSVP-aware IP network

GK

• RSVP proxy for Video endpoints

• Guaranteed QoS over SP network

• Demarcation for billing

• Call Admission control at the edge

Video Service Provider

VIDEO VIDEO


IP-to-IP Gateway for Signaling InterworkingIP-to-IP Gateway for Signaling Interworking

RAS

LRQ/LCF

INVITE/200OK

VoIP Clearing House

ITSPITSPPartner-APartner-A

GK

GK

SIPH.323

ITSPITSPPartner-BPartner-B

• IP-to-IP Gateway provides H323-SIP protocol interworking

• Billing and security demarcation

• Hides network topology and business relationships

323 - SIP 323 - SIP


The Next Generation VoIP Network

GKxGCP ITSP

PSTNGK

PSTN

SIP wholesale

GK

H.323 ITSP

PSTNGK

SIP ASP (Application

Service Provider)

PBX V

EnterEnterpriseprise

V

IP-PBXIP-PBX

CCM

EnterpriseEnterpriseAVVIDAVVID

Call ManagerCall Manager

H.323 VoIP Clearing house

IP Video

BackboneIP Network

V

IP-to-IP Gateway is the KEY element to connect these networks

VIDEO


Conclusion

• H.323 is alive and well!

• Enterprise services market present significant revenue opportunity to the VoIP service providers

• IP-to-IP Gateway is the new VoIP network element to help build the next generation multiservice IP network

323 - SIP323 - SIP323 - 323323 - 323

1 © 2002, cisco systems, inc. all rights reserved. h.323 voice market h.323-forum, november 2002,...

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