1 © 2001, Cisco Systems, Inc. All rights reserved. H.323 Markets and Networks Larry Schessel Sr....

1© 2001, Cisco Systems, Inc. All rights reserved.

H.323 Markets and Networks

Larry Schessel

Sr. Manager, Cisco

H.323 Forum Leadership Team

June 26, 2002

222© 2001, Cisco Systems, Inc. All rights reserved.

Meeting Goals

• Better understanding of:

Voice/Video Over IP Protocols / Market Drivers

H.323 Network Infrastructure

H.323 Network Deployment (Chaim Fried)

H.323 Forum resources

333© 2001, Cisco Systems, Inc. All rights reserved.

Evolving Voice/Video Over IP Protocols

• H.323 ITU standard protocol for interactive conferencing

Evolved from H.320 ISDN standard

Flexible, complex

• SIP (Session Initiation Protocol) IETF protocol, near draft standard, for interactive and non-

interactive conferencing

Simpler but less mature than H.323

• MGCP (Media Gateway Control Protocol) Emerging for PSTN gateway control, thin device control

• RTP (Real-time Transport Protocol) IETF standard media streaming protocol

444© 2001, Cisco Systems, Inc. All rights reserved.

Where is the Market Today?

Protocols:

• H.323 maturing scalable, reliable, mostly positioned in backbone

approximately 90% of VoIP ports and growing video ports

• SIP in late experimental stage driven by promise of enhanced services

potential positioning in backbone and access

• MGCP introduced at edge “standard” protocol between softswitch and endpoint

No clear protocol “winner”future networks will be multi-protocol

555© 2001, Cisco Systems, Inc. All rights reserved.

Where is the Market Today?(continued)

Service Providers:

• H.323 network infrastructure built and growing

• Now looking for customers/services to drive traffic

• Just beginning to consider broadband access

Enterprises:

• Beginning PBX replacement with IP-PBX Voice/Data consolidation

• H.323 desktop video conferencing beginning to take hold

• Holds promise of traffic to Service Providers’ H.323 networks

666© 2001, Cisco Systems, Inc. All rights reserved.

What are Companies Doing with H.323?

Today:

• Wholesale transit

• Calling Card

• Voice Conferencing

• Voice VPNs

• Unified Communications

• IP-PBX

• PC-to-phone

• Video conferencing

• Distance Learning

Trial:

• Call center

• IP-Centrex

• Mobility services

• Custom news / info

• Voice/Data/Video Collaboration

• Broadband residential

• More…

777© 2001, Cisco Systems, Inc. All rights reserved.

Evolving the PSTN Network:Replace the Tandem Network

Class-5Exchange

Class-4Exchange

Class-4Exchange

Class-5Exchange

The PSTN Model

H.323 LRQ GK

PacketNetwork

Class-5Exchange

GK

PacketNetwork

Class-5Exchange

The VoIP Model

Zone-BZone-A

888© 2001, Cisco Systems, Inc. All rights reserved.

Evolving the PSTN Network:Replace the Access Network

Class-5Exchange

Class-4Exchange

Class-4Exchange

Class-5Exchange

The PSTN Model

H.323 LRQ GK

PacketNetwork

Class-5Exchange

GK

Cable, DSL, ETTHNetwork

The VoIP Model

Zone-BZone-A

999© 2001, Cisco Systems, Inc. All rights reserved.

Next Generation VoIP Communications Network

Class-5Exchange

Class-4Exchange

Class-4Exchange

Class-5Exchange

The PSTN Model

H.323 LRQ GK

PacketNetwork

GK

Cable, DSL, ETTHNetwork

The VoIP Model

Zone-BZone-A

101010© 2001, Cisco Systems, Inc. All rights reserved.

Service Enhancements

Class-5Exchange

Class-4Exchange

Class-4Exchange

Class-5Exchange

The PSTN Model

H.323 LRQGK

Cable, DSL, ETTHNetwork

The VoIP Model

Zone-A

GK

PacketNetwork

Zone-B

Proxy

PacketNetwork

PC-Zone

H.323 LRQ

Proxy

PacketNetwork

ConferenceZone

H.323 LRQ

MCU

111111© 2001, Cisco Systems, Inc. All rights reserved.

PSTN

GK

Carrier-AInfrastructure

Zone

PSTNCarrier-A

PSTN

Carrier-BCarrier / ASP

Carrier / ASP

IP-PBX

Carrier / ASP

Carrier / ASP

SIP Network

MGCP Network

It’s a Network of Networks: A Multi-Service Internet

H323LRQ

SIPInvite

Interoperating With New Networks

121212© 2001, Cisco Systems, Inc. All rights reserved.

H.323 Forum Charter

• Website (http://www.h323forum.org) Products and Services

Standards

White Papers

General industry links

FAQs

H.323 Forum Mailing List

Meeting Minutes and Presentations

• H.323 Forum conference On-line video conferences 3-4 times per year

2-3 day conference once per year

• Equipment certification requirements

• Strategic press releases

• Organized representation at other conferences

131313© 2001, Cisco Systems, Inc. All rights reserved.

Getting Involved with H.323 Forum

• Participate in planning sessions

• Join Email List: <mailto:H323forum@mail.imtc.org>

Announcements:

• press

• planning meetings

• conferences

• certification events

• technical discussion Meeting Minutes

• Submit content to Website http://www.h323forum.org

• Become an H.323 Forum member

141414© 2001, Cisco Systems, Inc. All rights reserved.

Thank-You!