Embed Size (px)
Citation preview
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:[email protected]>
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!
