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Present Day Telepresence Solutions
Patrick Luthi, TANDBERGIMTC Requirements WG Chair
Telepresence systems
Telepresence systems
LifeSize® Conference 200™
Page 4
Video Only
Audio. Video, Data
Four 65+ 1080p30 High Definition TV for video and data sharing
Three 1080p30 HD cameras providing life-size coverage for 6 individuals
Touch Panel based Call Control and Directory lookup
One touch dialing to connect all three codec's simultaneously to the remote Telepresence Room
Standards based solution providing base level interoperability with similar Telepresence solutions
Point-to-Point Telepresence plus integration with MCU-based Telepresence solutions
© 2008 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 5
Video Flow – Between Triple Screen Systems
Max 4 Video StreamsCenter, Left and Right Camera = 3 Video streamsData Video = 1 Video stream
All Video Streams share 1 common RTP Connection
Each Camera stream is sent to the corresponding Display
Data Video stream is sent to the Projector HDMI Outlet
Only either Doc Cam or the PC Input would be active at a time
VideoRTP Session
CTS 2CTS 1
or
Halo Endpoints
Halo Collaboration Studio6-seat purpose-built room
Interoperation Via Halo
Gateways
Halo Collaboration Center
2 or 4-seat drop-in endpoint
Halo Meeting Room6-seat drop-in
endpoint
Common UI and Access to Central
Event Service
Halo WebcastBroadcast to Large Audiences from
Halo Endpoints
Halo on HVEN
7
Company B
Company A Campus 1
Company A Campus 2
Halo Video Exchange Network
Tail Circuit
Event Services
Management
Media (Fully Meshed)
804/18/23
Native InteroperabilityHow Polycom Does it
HDX 4000Continuous Presence
High Definition
HDX or VSX Group Systems
TPX 306M TPX 306M
RPX 200/400RMX
Other Group Systems
Point-to-point dialing
H.323/H.320/SIP
H.323/H.320/SIP
Current TANDBERG solution basics
Three codecs Multiple H323 calls External control unit which controls all three codecs Proprietary solution for signaling left and right codecs Uses non-standard userInput messages in H.245
Site A
Site B
ProsPros
Pros and Cons for current solution
Easy to implement
Easily extensible
Few components needed to change
Good solution for firewall traversal
General interoperability with non-telepresence systems
Works very well together with Telepresence-specific MCU
ConsCons
Proprietary
Long call setup
Multiple calls = multiple licenses
Calls
Firewall traversal
Registrations
Hard to do bandwidth control
Goes against normal call setup
Each camera maps to 1 and only 1 output screen.
Some ideas to requirements
N audio-streams, M video-streams Positional information of those streams Generic support for tagging streams Maintaining backwards compatibility Extremely low call-setup time Firewall traversal Encryption Audio energy level as metadata Minimum media type support Generic support for capabilities exchange Extensibility:
– H.241-like signalling of H.264 capabilities– H.245 generic types– Future audio and video codecs
N and M are [0,1,2,3,...]
N=M=1
<1 second
Thank you
www.tandberg.com