choosing a video conferencing
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©2009, NetForecast, all rights reserved.
Video Conferencing Track
Wed 10:15 – 11:15
Choosing a Video Conferencing Solution
Wed 11:30 – 12:30
Personal Video Conferencing Models and Demonstrations
Wed 2:00 – 4:15 PM
Network Requirements for Enterprise Video Conferencing
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Wide Range of Choices
Product range from Telepresence to Desktop Video
Infrastructure Requirements differ for each choice
Service Components – Build versus Buy
Connecting through the IP Network
Integration with Unified Conferencing
Legacy connectivity
Business to Business Video Conferencing
Where do I start?
What do I buy?
How can I deliver a successful service?3
©2009, NetForecast, all rights reserved.
Agenda
Application Definition
Video Conferencing Product Categories
Implementation Architecture Options
Network Transport Options
Service Strategies
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Define the Application
What business process can benefit from video
conferencing?
What are the characteristics of this application? Conversations within the enterprise or outside the enterprise?
Are meeting members meeting for the first time or do they already
know each other?
Executive meetings? Team collaboration?
Will there be shared materials? Is this material on computers or is it
physical in nature?
Short meetings or long meetings?
Is the meeting space environment conducive to video conferencing?
(lighting, acoustics, noise level, stability)
Is a high bandwidth network available?
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Different Requirements,
Different Solutions
Simple data
sharing
Low meeting fatigue Perfect eye contact
Ease of use
Room system
compatibility Low BW demand
Immersive experience
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Return on Investment
Video conferencing is usually justified based on travel
reduction Travel reduction savings occur best with a top-down mandate
These savings can be real and can generate a 12-month ROI
The real value comes from improving business
processes: Allow more team members to ‘meet’ and establish relationships
across distance without travel
Connect more in-house ‘experts’ to in-house problems or to partners
/ customers / vendors
Speed up development or marketing processes, get to market faster
Improve the quality and speed of cross-company programs through
more frequent and higher quality interactions
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Agenda
Application Definition
Video Conferencing Product Categories
Implementation Architecture Options
Network Transport Options
Service Strategies
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Videoconferencing Segments
Multi-codec
Room-Based
Executive Desktop
PC Desktop
Consumer
Meeting
Rooms
Offices
TargetsProductsExperience
Homes
Telepresence
Videoconferencing
9Chart compliments of Wainhouse Research
©2009, NetForecast, all rights reserved.
Telepresence – What is it?
Special purpose conference room dedicated to video
conferencing meetings
Participants in the room face the video participants across a
‘common’ table
Immersive technology
Multiple cameras and screens for wide angle view
Life size (HD) images of remote participants
‘Common’ table
Careful lighting and acoustics
design
Stereo sound for directionality
Eye contact (camera
placement)
Simple to use
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Room-Based Video Conference
HD Video is the underlying codec technology in
Telepresence
I define HD Video Conferencing as single codec
systems that use HD resolution
Some vendors label this ‘Telepresence’ as well
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Room-Based Video Conference
Systems designed for a conference room
Systems have an optional second display for data
sharing content
Older systems use standard definition (CIF or 4CIF)
Newer systems have HD resolution (720p or 1080p)
Room systems come in
different packaging: Lecture hall / auditorium
Conference room
Rolling carts
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Executive Desktop & Videophone
Integrated systems intended for executive
desktop use
Systems often double as additional PC
display
Desktop video phones intended to replace
telephone as well
Decide: Compatibility with telephony system?
Compatibility with room and
telepresence systems?
Who are you communicating with?
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Desktop Video
Many vendors with proprietary
solutions Each creates a video island
Skype, Visimeet, ooVoo, Vidyo,
Interoperable versions exist Polycom, Tandberg, RadVision,
Avistar
Images are smallWide angle lens – short distance
Environment is uncontrolled
Single person image may work
well for your application Pixels per face is high
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Peripherals
Document cameras
Smart boards
Special application devices Medical instrumentation
Remote equipment debugging
Projectors
What are the specific needs for
your application?
Drive the decision process
based on solving a real
business need
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Environment
Audio & Video environment must be managed
All these can ruin a video conference Poor lighting
Noise
Poor echo cancelation
Lessons of Telepresence Face the screen
Pixels per face
Lighting faces
Excellent audio is mandatory
Don’t put a video system at
the end of a boardroom
table – it doesn’t work!
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High contrast (windows, direct sunlight)
Distracting background
Small images (too many people / screen)
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Quality, Power, Bandwidth
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Increasing resolution, frame rate & quality increases bandwidth
demand
Increasing power of video compressor decreases bandwidth
requirement
Typical BW
requirements
today
Bandwidth Resolution Frame Rate
384 Kbps CIF 30 fps
512 Kbps 4CIF 15 fps +
768 Kbps 4 CIF 30 fps
1 Mbps HD720 15 fps +
2 Mbps HD720 30 fps
4 Mbps HD720 60 fps
6 Mbps HD1080 30 fps
CPU PowerVideo Quality
©2009, NetForecast, all rights reserved.
Agenda
Application Definition
Video Conferencing Product Categories
Implementation Architecture Options
Network Transport Options
Service Strategies
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Components of a Video Solution
Enterprise
Network
Room
Video
Telepresence
Video Services
Provider
MCU
Call Manager /
Gatekeeper
Mobile
Video
PSTN
Gateway
Desktop
Video Firewall
Traversal
FirewallInternet
Video
Exchange
PSTN
Recording /
Streaming
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Endpoints
Media
ServersCall
Control
Gateways
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Transport vs. Signaling
Transport (Media) How video conferencing video and audio is carried between
endpoints
Most current implementations using IP network or moving to IP
network in the near future
Video/audio connects directly from endpoint-to-endpoint or
endpoint-to-bridge based on IP routing
Signaling How video endpoints find each other on the network to set up a call
Signaling options: Stand-alone videoconferencing
IP-Telephony-based
Unified Communications-based
Cloud (service) based
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Enterprise Client-Server
Infrastructure resides
within the enterprise
Video is a stand-alone
communications solution
Call control managed by
H.323 gatekeeper or SIP
server
Local dialing plan
Often support remote workers
via VPN connections
Gateways required: Cross firewall for B2B calling
PSTN integration for ISDN video and for PSTN telephony integration
Capital $$$ investment, lower cost of operation
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Enterprise
Network
Room
Video
Telepresence
Video Services
Provider
MCU
Call Manager /
Gatekeeper
Mobile
Video
PSTN
Gateway
Desktop
Video Firewall
Traversal
FirewallInternet
Video
Exchange
PSTN
Recording /
Streaming
©2009, NetForecast, all rights reserved.
Unified Communications Based
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Enterprise
Network
Room
Video
Telepresence
Video Services
Provider
MCU
UC Mgr
(e.g. OCS)
Mobile
Video
PSTN
Gateway
Desktop
Video Firewall
Traversal
FirewallInternet
Video
Exchange
PSTN
Recording /
Streaming
Infrastructure still resides
within the enterprise
Video communications
now integrated with IM & voice
Call control managed by
UC manager through
presence
Remote workers supported
through VPN
Gateways required: Cross firewall for B2B calling
ISDN video calls
(Note, voice integration comes with UC)
Capital $$$ investment, lower cost of operation, unified
communications provides additional productivity
©2009, NetForecast, all rights reserved.
Cloud-Based Service
Infrastructure resides
in-the-cloud (service
provider)
Video is a stand-alone
communications
solution
Call control managed by
servers in the service provider cloud (H.323, SIP or proprietary)
Connect to anyone with Internet access and account access
Service may provide gateways to: Standards-based conferencing (for proprietary solutions)
ISDN
Voice
Low capital $$$, cost based on subscriptions or use
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Service
Provider
Cloud
Enterprise
Network
Room
Video
Telepresence
Call Manager /
Gatekeeper
Mobile
Video
PSTN
Gateway
Desktop
Video
Firewall
Traversal
FirewallInternet
PSTN
Recording /
Streaming
MCU
©2009, NetForecast, all rights reserved.
Agenda
Application Definition
Video Conferencing Product Categories
Implementation Architecture Options
Network Transport Options
Service Strategies
24
©2009, NetForecast, all rights reserved.
The Network
There is one more key component of the video
infrastructure, the Network!
Transporting video conferencing is a learning
experience Has all the real-time issues of VoIP
Plus it has an insatiable thirst for bandwidth
Ensure your network team is an integral part of the
video conferencing discussion
Determine network requirements for the video
conferencing deployment Transport bandwidth demand
Quality of Service needs
Service Level Agreement
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Converged or Overlay Network?
Overlay – Separate network
carries video traffic
Isolates bursty data traffic
from voice & video
Simple to design and configure
Allows rapid and successful video deployment
especially for high visibility telepresence systems
Can be migrated back to converged over time
Enterprise WAN
Firewall
Border
Security
Internet
Video WAN
MSP
SERVICE
DESK
ISDN
Gateway
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Converged Network Solution
Converged – All data,
voice & video on the
same corporate network
Provides best long-term
cost and manageability
Difficult to get it right
Requires new understanding about traffic support,
tools, QoS and bandwidth management
Will be a requirement for desktop-based video
Security
Internet
MSP
SERVICE
DESK
ISDN
Gateway
Enterprise WAN
Firewall
Border
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Network for Video Session 2:00 PM today!
©2009, NetForecast, all rights reserved.
Agenda
Application Definition
Video Conferencing Product Categories
Implementation Architecture Options
Network Transport Options
Service Strategies
28
©2009, NetForecast, all rights reserved.
Understand your customer
Align the service with customer requirements
Define your enterprise service offering
Service features and service levels
Secure corporate sponsorship and budget
Deploy and manage the right technology
Endpoints, transport infrastructure,
media services, management platforms
Build an effective delivery organization
Centralized and remote support team
Skills and experience
Focus on Service Level Management
Quality-of-Experience, Capacity Utilization,
Cost Efficiency, Business Value
Manage to targets; proactively measure and report results
Your Role as Service Manager
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©2009, NetForecast, all rights reserved.
Managed Services Providers can help
Most infrastructure components can be
outsourced via network links
Service providers bring a wealth
of knowledge about managing
a video conferencing environment
May have specialized tools for support of
video conferencing environment
Scheduling, billing, reporting
Small deployments benefit from concentrated
knowledge base of service provider
Think through bandwidth issues before outsourcing MCU to a
service provider Hosted – Service provider owns bridge, charges per call, needs high BW connection
Managed – Enterprise owns bridge, service provider manages, bridge located in enterprise
network
Managed Service Providers
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Choosing A Video Conferencing
Solution
Questions?
Thanks for attending.
Interop Las Vegas 2010
John [email protected]