Video Conferencing

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Video Conferencing Are you thinking about it?
Diane Richter ATT
2
Agenda

• Video Conferencing, why now?
• Questions to ask yourself
• Components of a video network
• Video Hardware
• ISDN video conferencing
• IP video conferencing

3
What is driving the growth of Video Conferencing

• Reduce Business Travel
• 9-11
• Business down turn
• Save money
• Increase production
• Migration to IP is finally real
• Can use the same network as the rest of data
  services.

4
Video Industry Statistics

• Revenue Potential
• Generated 2.3B 2001
• 6.8B by 2007
• Market saturation 5
• Projected Compound annual growth rate 2001
  2007 18.6
• 2001 Network Type
• ISDN 85
• IP 10
• ATM 5
• 2007 Projected Networks
• ISDN 11
• IP 85
• ATM 2

5
Top Applications in 2002

• Application
• Travel avoidance
• Supplier/customer relationships
• Distance Learning
• Legal, Depositions Partner meetings
• Executive Recruiting

It is all about getting the right person in the
right place at the right time
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What is your business need?

• How do you train your employees?
• HR?
• New products?
• New systems or procedures?
• Are you happy with web training or teletraining?
• What about your sales meetings?
• How often do you meet face to face?
• Would it help to meet more often?
• Project planning meetings?
• If you met more often and spent less time
  traveling, would you be able to get a product
  developed more rapidly?
• How much new revenue do you think you could
  generate if you traveled less but met more often?

• Meetings with key customers and suppliers?
• Would it help to have better access to your
  suppliers?
• Do you know if they have video conferencing?
• Tell me about your travel policy and budget
• Is your company under pressure to reduce
  expenses?
• Has your travel budget been affected by the
  weakened economy?
• Do you have any new security policies that affect
  business travel?
• Have the new airport security measure impacted
  the productivity of your traveling employees?
• Where does your travel department report into?
  Is that department interested in reducing
  expenses?

7
Consider

• When was the last time you saw video
  conferencing?
• The technology is constantly improving. If it
  has been gt 1years, it is better, less expensive
  and easier to manage and use now.
• Are most of your meetings internal or external?
• Internal, you can utilize your existing IP
  network
• External we offer a secure gateway that allows
  you to call to either ISDN or IP endpoints
  without investing in the hardware

• What type of LAN/WAN network do you have in
  place?
• Video can run effectively over MIS, ATM and
  IPeFR, as well as ISDN.
• Public internet is not a business quality
  alternative.
• Did you know that 84 of all video hardware is
  capable of either IP or ISDN calling?
• You may not need to covert your existing video
  hardware, it could be IP capable today.

8
Videoconferencing Network Components
H.320

• Dedicated ISDN lines to
• every end point
• Predictable performance
• Metered usage charges

H.323

• Utilizes existing
• infrastructure
• LAN Ethernet
• WAN IP
• Higher fixed cost, but
• All you can eat WAN

ISDN
10/100Ethernet
GW Or AVGS
MCU
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ISDN or H.320

• Cost
• Usage sensitive pricing
• Great for variable utilization
• But,may not be the best choice for every desktop
• Most widely used video network
• Intercompany application
• ISDN embedded base
• Legacy H.320 hardware
• Proven and reliable
• Bandwidth has guaranteed performance

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IP or H.323

• Fixed costs
• Forecast expenses
• Allows for technology convergence
• Integrates into data network infrastructure
• IT staff can focus on a single network platform
• Fits into network expansion plans
• IP connectivity is on every desktop
• Greater accessibility
• New video hardware is IP capable
• Allows better multimedia and data collaboration

11
Typical IP Video Deployment
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The Gateway Choice
With a service provider
Within your own network

• Who will assume responsibility for purchase,
  installation, configuration, maintenance, and
  troubleshooting of gateway equipment?
• Who will plan for and design network for
  gateway placement?

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ATTs Video Gateway Safe, secure communications
between public and separate private networks

• Benefits
• Provides an Easy Transition Path Between Network
  Architectures
• Allows you to Track and Manage VC Usage by
  providing Usage Detail
• Lower Capital/Resource Required to Deploy
  Manage Video Network
• Features
• Browser interface
• Global Directories
• Favorites List
• User status indicators
• Point and Click Call Launching
• MCU capabilities
• Supports speeds up to 768 KB
• Consolidated Billing
• Advance Scheduling
• Automatic email notification

ATT Video Gateway Service
ISDN
Internet
Private Networks Public Networks
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IP/VC-Based Enterprise Videoconferencing Network
H.323Desktop
H.323 Group System
ATT IP
H.323Desktop
H.323Desktop
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Effect of Latency, Jitter, Packet Loss
What is the effect of...

• Latency
• Video lag time
• Awkward conversation
• Too much packet loss
• Jitter
• Intermittent lag
• Awkward conversation
• Too much packet loss
• Packet loss
• Image artifacts
• Audio artifacts
• Too much video unusable

Delay lt 150 ms. end-to-end Jitter lt 150
ms Packet loss lt 1-3
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How Much Bandwidth Do You Need?
Video Data Rate 20 Bandwidth Required
Video Data RateBW Required
128kbps 153kbps
384kbps 460kbps
lt 33 of Link Capacity
512kbps 614kbps
768kbps 921kbps
lt 75 of Link Capacity
1.5Mbps 1.8Mbps
Link Capacity
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Quality of Service Means Prioritization and
Metering of Traffic
Desktop Conferencing, Distance Learning
Mission-Critical Applications
E-mailWeb Browsing
FTP
Built into all Cisco Routers and Switches with
Cisco IOS
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Why Video over ATTs IP? Quality

• CoS on access bandwidth and ATTs Managed IP
  Network preserve business class video quality
• Simplifies network management and improves
  network return on investment
• Clears a path toward the innovative video
  applications of the future and simpler IT
  management

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ATTs Video Offer

• Converged networks
• MIS
• IPFR
• ATM
• ISDN
• Managed Bridging Services
• ATT Video Bridging Service (ISDN)
• ATT Video Gateway Service (IP)
• Solutions Outsourcing
• ATT Solutions
• Hardware Resale
• Cisco
• Polycom
• Implementations Support
• Professional Services
• Alliance Program

20
ATT Belief System It is all about convergence

• IP video conferencing will surpass ISDN within
  the next few years
• Our customers do not want nor need to build a
  separate network for video conferencing.
• We encourage our customers to invest in a high
  quality, high reliability network infrastructure
  and run their video over it.
• We provide network based enablers that will
  seamlessly provide gateways between our networks
  and other users.
• If our customers want to build their own gateway,
  we can help them engineer network and choose the
  right components.

21
Videoconferencing Solutions
What does ATT Offer? ü ATT offers ü
Consulting - Fee-based Advice on
videoconferencing over IP Videoconferencing
Rooms - Fully equipped and supported
videoconferencing room rental ü Endpoint
Equipment - Camera/codec/screens for PCs or
videoconferencing rooms (Co-marketing with
Polycom) ü Premise Based Gateway Equipment - IP
- ISDN protocol conversion equipment
operating on customers premise (Co-marketing with
Cisco) ü Network Based Gateway Equipment - IP -
ISDN protocol conversion equipment operating
in the network (ATT Video Gateway Service) ü
Network Services - ISDN, ATM, Frame, MIS
supporting videoconferencing (ATT network
services) ü Videoconferencing Mulitpoint
Bridging Service - Provides call set-up and
hands-on support of a customers
videoconferencing multipoint calls/events
(ATT Video Bridging Service)