slide1 l.
Skip this Video
Loading SlideShow in 5 Seconds..
Video Conferencing Are you thinking about it? PowerPoint Presentation
Download Presentation
Video Conferencing Are you thinking about it?

Loading in 2 Seconds...

play fullscreen
1 / 21

Video Conferencing Are you thinking about it? - PowerPoint PPT Presentation

  • Uploaded on

Video Conferencing Are you thinking about it? Diane Richter AT&T Agenda Video Conferencing, why now? Questions to ask yourself Components of a video network Video Hardware ISDN video conferencing IP video conferencing What is driving the growth of Video Conferencing

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

Video Conferencing Are you thinking about it?

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Video Conferencing

Are you thinking about it?

Diane Richter


  • Video Conferencing, why now?
  • Questions to ask yourself
  • Components of a video network
  • Video Hardware
  • ISDN video conferencing
  • IP video conferencing
what is driving the growth of video conferencing
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.
video industry statistics
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%
top applications in 2002
Top Applications in 2002


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

what is your business need
How do you train your employees?


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?

What is your business need?
When was the last time you saw video conferencing?

The technology is constantly improving. If it has been > 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.

videoconferencing network components






Videoconferencing Network Components


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


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







isdn or h 320
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
ip or h 323
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
the gateway choice
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?
at t s video gateway safe secure communications between public and separate private networks


IP enabled Frame Relay


AT&T’s Video GatewaySafe, secure communications between public and separate private networks


  • 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


  • 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


Video Gateway




Private Networks Public Networks


H.320Room System






IP/VC 3520/3525/3540


IP/VC 3530

H.323/H.320 Gateway


IP/VC 3510/3540

H.320Room System


H.323 MCU

IP/VC-Based Enterprise Videoconferencing Network


H.323 Group System





effect of latency jitter packet loss
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 < 150 ms. end-to-end

Jitter < 150 ms

Packet loss < 1-3%

how much bandwidth do you need





How Much Bandwidth Do You Need?

Video Data Rate + 20% = Bandwidth Required

Video Data RateBW Required

128kbps = 153kbps

384kbps = 460kbps

< 33% of Link


512kbps = 614kbps

768kbps = 921kbps

< 75% of Link Capacity

1.5Mbps = 1.8Mbps

Link Capacity

quality of service means prioritization and metering of traffic
Quality of Service Means Prioritization and Metering of Traffic

Desktop Conferencing,

Distance Learning

Mission-Critical Applications

E-mailWeb Browsing


Built into all Cisco Routers and Switches with Cisco IOS™

why video over at t s ip quality
Why Video over AT&T’s IP? Quality
  • CoS on access bandwidth and AT&T’s 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
at t s video offer
AT&T’s Video Offer

Converged networks

  • MIS
  • IPFR
  • ATM
  • ISDN

Managed Bridging Services

  • AT&T Video Bridging Service (ISDN)
  • AT&T Video Gateway Service (IP)

Solutions Outsourcing

  • AT&T Solutions

Hardware Resale

  • Cisco
  • Polycom

Implementations Support

  • Professional Services
  • Alliance Program
at t belief system it is all about convergence
AT&T Belief SystemIt 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.
videoconferencing solutions
Videoconferencing Solutions

What does AT&T Offer?

ü = AT&T offers

üConsulting - Fee-based Advice on videoconferencing over IP

Videoconferencing Rooms - Fully equipped and supported videoconferencing room rental

üEndpoint Equipment - Camera/codec/screens for PCs or videoconferencing rooms

(Co-marketing with Polycom)

üPremise Based Gateway Equipment - IP - ISDN protocol conversion equipment

operating on customers premise (Co-marketing with Cisco)

üNetwork Based Gateway Equipment - IP - ISDN protocol conversion equipment

operating in the network (AT&T Video Gateway Service)

üNetwork Services - ISDN, ATM, Frame, MIS supporting videoconferencing

(AT&T network services)

üVideoconferencing Mulitpoint Bridging Service - Provides call set-up and

hands-on support of a customer’s videoconferencing multipoint calls/events;

(AT&T Video Bridging Service)