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H.323 Video Conferencing H.323 Video Conferencing

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  • 1. Ulrich Schwenn (RZG) H.323 Videoconferencing H.323 Video Conferencing EFDA Remote Participation Training & Workshop KFKI Budapest, HungaryMay 2004Dr. Ulrich Schwenn, Kewin Stckigt {schwenn|kfs}@rzg.mpg.de Multimedia & Videoconferencing Grouphttp://www.rzg.mpg.de/vc Computing Center Garching (RZG),Max-Planck-Gesellschaft (MPG) &Max-Planck-Institut fr Plasmaphysik (IPP) 03/11/2003Budapest, RP-Training & Workshop May 20041

2. Ulrich Schwenn (RZG) H.323 Videoconferencing Outline of Talk Psychology, Ergonomics & Acceptance of VC-Services ITU Standards H.320 / H.323- Links GDS, ENUM(Kewin Stckigt) DFN Verein GWiN - VC Service - DFNVC Experiences - Outsourcing- IPP Local Rooms- IPP GWiN GANT NIIF - EFDA Scenarios & Rooms Traversing H.323 audio/video through firewalls (Kewin) Statistics - IPP What Else? Future of H.323Acknowledgements 03/11/2003 Budapest, RP-Training & Workshop May 2004 2 3. Ulrich Schwenn (RZG) H.323 Videoconferencing Psychology, Ergonomics &Acceptance of VC-Services3. What is "Multimedia Conferencing"? (IMTC Definition) Multimedia conferencing revolutionizes vital, everyday tasks such ascorporate management, training and communication betweengeographically-dispersed teams. This technology enables interactive, livesharing of audio, video and desktop applications during a conferencesession. Multiple users participating from geographically distant locationscan collaborate on an application and share visual information while they discuss a project together. Internet voice and video and PSTN videoincrease productivity and reduce travel time and cost, while offering a personal mode of communication. Applications are wide-ranging and include investor relations, telemedicine, distance learning, technical designreviews, and other collaborative activities. http://www.imtc.org/faq/#3 03/11/2003Budapest, RP-Training & Workshop May 2004 3 4. Ulrich Schwenn (RZG) H.323 Videoconferencing ITU Umbrella standards NEW or important: IP H.264 same video quality H.264 at bandwidth H.235H.264Tandberg & Polycom (mostly proprietory)G.722H.239 H.450 H.235 Encryption DES/AES (no problem for IPP, working with all Tandbergs) ISDN H.239 Presentation sharing DuoVideo Tandberg H.264 People & Content PolycomH.264Sony G.722 H.239 G.722 Audio with 7 KHz H.450 H.450 Directories (Kewin)03/11/2003Budapest, RP-Training & Workshop May 2004 4 5. Ulrich Schwenn (RZG) H.323 VideoconferencingITU Standards / Links http://commons.internet2.edu/http://www.videnet.gatech.edu/cookbook.en/list_toc.phphttp://www.teamsolutions.co.uk/video.htmlhttp://www.videnet.gatech.edu/cookbook.en/list_page.php?topic=6&url=best-prac.htmlhttp://www.vidkonf.niif.hu/protdoc/videokonf_okt_20031217.pdfhttp://www.rzg.mpg.de/vc/docshttp://www.imtc.org/events/Forum_2004/2004ForumAgenda.dochttp://www.imtc.org/faq/#3 03/11/2003Budapest, RP-Training & Workshop May 2004 5 6. Ulrich Schwenn (RZG) H.323 VideoconferencingDFNVC & IPP Infrastructurehttp://www.vc.dfn.dehttp://www.rzg.mpg.de/vc IPP ProxyDMZ GNU Open H.323GK MPG mcu6 MVP 0049 383488 1xxx 0049 893299 6xxxMCU-60 V3.2 MVP ...... ...... for MPGGreifswaldGarching0049107IPP H.323 Infrastructure Usable by EFDAH.323 Clients03/11/2003Budapest, RP-Training & Workshop May 2004 6 7. Ulrich Schwenn (RZG) H.323 Videoconferencing ViDeNet & GDSH.323 dialing on the public internetEFDA Remote Participation Training & Workshop KFKI Budapest, HungaryMay 2004Kewin Stckigt Multimedia & Videoconferencing GroupComputing Center Garching (RZG), Currently Auckland, New Zealand [email protected]/11/2003Budapest, RP-Training & Workshop May 2004 7 8. Ulrich Schwenn (RZG) H.323 VideoconferencingOutline of talk ViDe GDS Global Dialing Scheme How does it work? Who is responsible? Dialing examples 03/11/2003 Budapest, RP-Training & Workshop May 2004 8 9. Ulrich Schwenn (RZG) H.323 VideoconferencingViDe ViDe stands for Video Development Initiative Hosted at University of North Carolina at Chapel Hill (UNC) ViDe belongs to the Internet2 initiative Was founded by several representatives of universities and educational networks ViDe wants to deploy digital audio and video in research and higher education Numerous workgroups doing active research in different areas, e.g. data collaboration, streaming, etc.03/11/2003 Budapest, RP-Training & Workshop May 2004 9 10. Ulrich Schwenn (RZG) H.323 VideoconferencingViDe Virtual network, based on the H.323 standard Network consists of several zones (more about zones later) ViDe comprised several autonomously managed H.323 gatekeeper around the world Management of IP traffic Get your personal videonumber (E.164) Allows interaction with MCU (multipoint conference units;needed if more than 2 systems want to communicate witheach other)03/11/2003Budapest, RP-Training & Workshop May 2004 10 11. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme GDS is a numbering plan for videoconferencing systems, MCU conferences, gateways and other audio/video communication related systems GDS is similar to the telephone numbering scheme IAC (International access code): 00 CC (country code): e.g. 36 for Hungary, 49 for Germany,etc. OP (Organization prefix): e.g. 200 for KFKI, 893299 forIPP Garching EN (Endpoint number): e.g. 2011 for P. Giese, 6004 for U.Schwenn An E.164 number (~ GDS number) consist of 03/11/2003 Budapest, RP-Training & Workshop May 2004 11 12. Ulrich Schwenn (RZG) H.323 Videoconferencing GDS Global Dialing Scheme GDS uses a hierarchy of gatekeeper Each gatekeeper represents one zone A Zone is a pool ofvideoconferencing systems,belonging to one Organizationprefix It does not matter, ifvideoconferencing systemsare on the same network; theycan be widespread 03/11/2003Budapest, RP-Training & Workshop May 200412 13. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme Several research network provider, like NIIF, DFN, etc. host country gatekeeper who represent the country code (CC) Those CGKs are connected to the world gatekeeper, owned by the Welsh Video Network, University of Wales, Ireland 03/11/2003Budapest, RP-Training & Workshop May 200413 14. Ulrich Schwenn (RZG) H.323 Videoconferencing GDS Global Dialing SchemeWorld Gatekeeper, 00CGK Hungary, 36 CGK Germany, 49CGK USA, 1 CGK KFKI Gatekeeper, 200IPP Gatekeeper, 893299DFN Gatekeeper, 711 UNC Gatekeeper, 129VC system P. Giese, 2011 VC system U. Schwenn, 6004 VC system T. Johnson, 71004 VC system K. Stoeckigt, 6006 03/11/2003Budapest, RP-Training & Workshop May 2004 14 15. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme P. Giese U. Schwenn: 00498932996004World Gatekeeper, 00CGK Hungary, 36CGK Germany, 49 CGK USA, 1 CGK KFKI Gatekeeper, 200 IPP Gatekeeper, 893299DFN Gatekeeper, 711VC system P. Giese, 2011VC system U. Schwenn, 6004VC system K. Stoeckigt, 6006 03/11/2003 Budapest, RP-Training & Workshop May 200415 16. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme K. Stoeckigt T. Johnson: 00112971004World Gatekeeper, 00 CGK Hungary, 36 CGK Germany, 49 CGK USA, 1 CGK KFKI Gatekeeper, 200IPP Gatekeeper, 893299 DFN Gatekeeper, 711 UNC Gatekeeper, 129 VC system P. Giese, 2011VC system U. Schwenn, 6004 VC system T. Johnson, 71004 VC system K. Stoeckigt, 6006 03/11/2003Budapest, RP-Training & Workshop May 2004 16 17. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme U. Schwenn K. Stoeckigt: 00498932996006 World Gatekeeper, 00CGK Hungary, 36 CGK Germany, 49 CGK USA, 1 CGK KFKI Gatekeeper, 200 IPP Gatekeeper, 893299DFN Gatekeeper, 711 UNC Gatekeeper, 129VC system P. Giese, 2011VC system U. Schwenn, 6004 VC system T. Johnson, 71004VC system K. Stoeckigt, 6006 03/11/2003Budapest, RP-Training & Workshop May 2004 17 18. Ulrich Schwenn (RZG) H.323 VideoconferencingViDe & GDS ViDe http://www.vide.net http://videnet.unc.edu GDS http://www.wvn.ac.uk/support/h323address.htm http://www.rzg.mpg.de/vc/index.php http://www.vidkonf.niif.hu/index.php 03/11/2003Budapest, RP-Training & Workshop May 200418 19. Ulrich Schwenn (RZG) H.323 VideoconferencingHomogeneous MPG Scenarios BMS - Section Meetings on -Financing / PersonnellTTTT TResearch Policy / ProgramTRobust solution TT T recommandations TDFNVC T TTidentical Clients >15TT T T Tandberg 1000 (now) T TT T TT TTSW / HW SupportTT outsourced (MVC)DFNVC GatekeeperT & first level SupportTT T Project BAR / MPGT7 Systems at central locations DFNVCTT TPresident Tandberg 880 (now) TT TTTTAdministrative (incl. Displays&control)T Headquarters03/11/2003 Budapest, RP-Training & Workshop May 2004 19 20. Ulrich Schwenn (RZG) H.323 VideoconferencingHomogeneous HGF VC ScenarioHGF - Programm-TTTTManagementT TTTTTTHGF-VC Taskforce (KODA)T TDFNVC (10/2003)TT TRecommendations PTT Clients (Tandberg 880) SW / HW Outsourcing T DFNVC Service PT Tests Summer 2003, Feedback:T DFNVC, MVC, Radvision TTTTDFNVCT PPolycom T Tandberg2004 03/11/2003Budapest, RP-Training & Workshop May 200420 21. Ulrich Schwenn (RZG) H.323 VideoconferencingIPP Videoconferencing T880T500T6000T500T500 MS Greifswald 10 VVDFNVCDFNVCT6000 3 T880 T6000MST500MS Garching 2 T1000 15 VV Tests 2x VSX 7000, PCS-1 03/11/2003Budapest, RP-Training & Workshop May 200421 22. Ulrich Schwenn (RZG) H.323 VideoconferencingH.323 Statistics IPPDesktops~25 ViaVideo, 2 Tandberg 1000 - positive> 10 connections / client / weekVNC in regular use - positive Meeting/Seminar rooms 7 Tandberg 500/880 - positive~10% H.320up to 15 point-to-point / room / w - positive~ 2 multipoint (3-5) / room / w- positiveVNC in regular use - positiveLecture Halls 3 Tandberg 6000 (MS) (H. 323), DuoVideo~10% H.320~ 5 point-to-point / w, 120 min - positive~ 1-2 multipoint / w- positiveNetMeeting, VNC in regular use - positive2 IP interrupts (ISDN backup)120 conferences (280h) in 2003 - positive Compatibility / external: VRVS, SW clients, old H.320 clients,Webconferencing- negative 03/11/2003Budapest, RP-Training & Workshop May 200422 23. Ulrich Schwenn (RZG) H.323 Videoconferencing Traversing H.323 audio/video through firewalls EFDA Remote Participation Training & Workshop KFKI Budapest, HungaryMay 2004Kewin Stckigt Multimedia & Videoconferencing GroupComputing Center Garching (RZG), Currently Auckland, New Zealand [email protected]/11/2003Budapest, RP-Training & Workshop May 2004 23 24. Ulrich Schwenn (RZG) H.323 VideoconferencingOutline of talk The Problem A short introduction GnuGK The OpenSource solution Why GnuGK? How does it work? A few features ViDeNet & GDS Authentication schemes Security aspects Statistics Summary & Acknowledgement03/11/2003Budapest, RP-Training & Workshop May 200424 25. Ulrich Schwenn (RZG) H.323 VideoconferencingThe problem a short introduction Complexity of media streams Several udp and tcp streams, e.g. Q.931, H.245, H.225.0 are tcp (control) streams Video and audio data are encapsulated in udp packets Amount of data per second A vc connection with 512kbit/s send approx. 90 udp packets with an averagepacket size of 750 bytes per second Dynamic Port allocation H.323 uses a few fixed ports, e.g. 1719/tcp , 1720/tcp Per connection approx. 6 to 8 ports needed Ports are negotiated dynamically during the connection setup Used port range: > 210 & < 216 (1024-65535) How do you open ports (on a firewall) if you dont know them?03/11/2003Budapest, RP-Training & Workshop May 2004 25 26. Ulrich Schwenn (RZG) H.323 VideoconferencingThe problem a short introduction Blocked communication or what happens if Setup (often) can pass firewall, but audio and videodata are blocked Standard scenario: external (unprotected) client gets audioand video, but internal (protected) system gets nothing 03/11/2003Budapest, RP-Training & Workshop May 200426 27. Ulrich Schwenn (RZG) H.323 VideoconferencingGnuGK The OpenSource solution Why GnuGK? Its free (GPL) It runs on Linuxalso free (Windows/Mac version alsoavailable) Its a combination of a regular gatekeeper and a proxy Fully H.323 v.4 compatible 100% compatible to ViDeNet & GDS 03/11/2003 Budapest, RP-Training & Workshop May 2004 27 28. Ulrich Schwenn (RZG) H.323 VideoconferencingGnuGK The OpenSource solution How does it works? Videoconferencing system communicates only with the proxy ALL data, tcp data (control channels, etc.) as well as audio and video data (udp) are transmitted via the proxy 03/11/2003 Budapest, RP-Training & Workshop May 2004 28 29. Ulrich Schwenn (RZG) H.323 Videoconferencing just a few features ViDeNet & GDS GnuGK can be fully integrated into the existing ViDeNet & GDS (Global Dialing Scheme) structure dialing of E.164 numbers rather than IPs E.g. Gatekeeper in Garching has Zone 0049893299 it is easier to remember an E.164 number: 00498932996004 instead of 130.183.2.60 Authentication schemes Many different authentication methods available, e.g. H.350 (LDAP), mySQL authentication, Radius authentication (incl. billing) 03/11/2003 Budapest, RP-Training & Workshop May 200429 30. Ulrich Schwenn (RZG) H.323 Videoconferencing just a few features Proxy can be fully/partial deactivated, simply by setting[Proxy] [Proxy][Proxy]Enable=0Enable=1 Enable=1 Port range (H.245,Q.931, T.120, RTP) can be limited InternalNetwork=10.10.2.0/24 This limits the amount of concurrent calls May cause problems with MCU conferences NATed endpoints are supported Call queuing/forwarding Load balancing03/11/2003Budapest, RP-Training & Workshop May 2004 30 31. Ulrich Schwenn (RZG) H.323 Videoconferencing Security aspects Firewall just open for gatekeeper/proxy allvideoconferencing systems are protected by the firewalland cant be hacked/attacked System is as secure as any other system on the publicinternet Everything you have to protect is the gatekeeper/proxy Switch off all unnecessary services, e.g. www, ftp, ssh (from outside) Install all security fixes/patches03/11/2003 Budapest, RP-Training & Workshop May 200431 32. Ulrich Schwenn (RZG) H.323 VideoconferencingSecurity aspects NOTICE: ALL SYSTEMS CAN BE HACKED/ATTACKED AS LONG AS THEY ARE CONNECTED TO A NETWORK/INTERNET/etc. 03/11/2003Budapest, RP-Training & Workshop May 2004 32 33. Ulrich Schwenn (RZG) H.323 VideoconferencingStatistics (I) GnuGK is used for ALL videoconferences in IPP/RZG (internintern, internextern, externintern, externextern) System is in use since 08/02 Until 04/04: 1.6 GHz PIII, 256GB Ram, SuSE Linux 7.3 Since 05/04: IBM X3-35 eServer, 4 x Intel Xeon 2.8 GHz, 1.5GB Ram, RedHat 9 Breakdowns (old gatekeeper) so far: 2003: 2 breakdowns (1 x Kernel Panic, 1 x power failure in building) 2004: 2 breakdowns (1 x failure of power supply, 1 x harddisk crashed System was replaced by new GK)03/11/2003 Budapest, RP-Training & Workshop May 200433 34. Ulrich Schwenn (RZG) H.323 Videoconferencing Statistics (II) ~ 1000 calls per month (~ 40% multipoint) Connection speeds from 512kbit/s up to 3MBit/s (single connection) ~ 120GB monthly data throughput Old system was up and running for 239 days, more than 7000 calls were handled, about 2000 came from external institutions, e.g. KFKI, other EFDA members, MCUs, etc. We were not able to force proxy down03/11/2003 Budapest, RP-Training & Workshop May 2004 34 35. Ulrich Schwenn (RZG) H.323 VideoconferencingGK / Proxy Statistics RZG Registered Endpoints IPPLoad Test Multipoint Conference Rad MCU6 03/11/2003Budapest, RP-Training & Workshop May 200435 36. Ulrich Schwenn (RZG) H.323 VideoconferencingGK / Proxy Statistics RZG Load Test Current Calls 03/11/2003Budapest, RP-Training & Workshop May 2004 36 37. Ulrich Schwenn (RZG) H.323 VideoconferencingGK / Proxy Statistics RZG Load Test Proxy Throughput 03/11/2003Budapest, RP-Training & Workshop May 2004 37 38. Ulrich Schwenn (RZG) H.323 VideoconferencingGK / Proxy Statistics RZG Load Test Proxy ThroughputGK-Calls6000 5000GK running 4000 (days) 3000 Calls (overall) 2000 1000 Calls0 (successful)Calls (fromoutside)03030404 04 202020 20 201.2. 1. 1. 2. .1 .1 .0 .0.025 05 142308 03/11/2003Budapest, RP-Training & Workshop May 200438 39. Ulrich Schwenn (RZG) H.323 Videoconferencing Summary GnuGK is THE solution for IPP/RZG Disadvantages Monitoring just via telnet (allowed ips can be specified) Advantages Its free OpenSource Bunch of authentication methods Runs on Linux/Windows/Mac E.164 rewriting Accounting (Radius, File, SQL) and much more03/11/2003Budapest, RP-Training & Workshop May 2004 39 40. Ulrich Schwenn (RZG) H.323 VideoconferencingDesktop (Overview) Tandberg 1000Ullis desktop ViaVideo, (xconf, vpoint, VIGO in test) Speaker SoftwareContactsSpeaker-phoneLaptopCoffeeSchedulerCellularT 1000 etc. for bosses, ViaVideo for everybody, VNC - VRVS/phone if you like03/11/2003 Budapest, RP-Training & Workshop May 200440 41. Ulrich Schwenn (RZG) H.323 Videoconferencing IPP Rooms Karls desktop 03/11/2003Budapest, RP-Training & Workshop May 2004 41 42. Ulrich Schwenn (RZG) H.323 Videoconferencing Medium Size Seminar RoomSeminar-Room RZGVC - Polycom VS, Sony PCS-1,Tandberg 880 Monitor, BeamerScreen, Smartboard PC Smartboard (DRFC, IPP) - Phone Calls to Set Top Systems - VNC(VRVS using H.323 client?) 03/11/2003Budapest, RP-Training & Workshop May 2004 42 43. Ulrich Schwenn (RZG) H.323 Videoconferencing MPG RoomsSeminar-RoomMPI for AstrophysicsBeamer Speaker Display 2 Smartboard PC Display 2Media Control for LaptopsTandberg 550Audio Displays TouchPanelBeamer El. Screen Microphone LightingBlinds 03/11/2003Budapest, RP-Training & Workshop May 2004 43 44. Ulrich Schwenn (RZG) H.323 VideoconferencingMPG Rooms Seminar-Room General Administration Max-Planck-Society SpeakerPC Display 2 Display 1KEM - MicrophoneMedia Control forTandberg 6000 MS LaptopsAudioDisplays TouchPanelLightingBlinds digitech 03/11/2003Budapest, RP-Training & Workshop May 200444 45. Ulrich Schwenn (RZG) H.323 Videoconferencing Large Seminar Room / Lecture Hall AUG Monday meeting - Remote participation AsdexUpgrade for EFDA H.323-VC Tandberg 6000, 3 Cameras 2-3 Beamer, 2-3 Screens Smartboard / Touchmonitor Media Control (AMX or Crestron) Lighting, AirCond., VC, DVD... , Laptops Lighting Audio mixer, KEM + wireless Mics 2 PCs - VRVS, VNC Presentations Recommended: Smartboard (DRFC, JM Theis) or similar (IPP, AUG,K Behler) 03/11/2003 Budapest, RP-Training & Workshop May 2004 45 46. Ulrich Schwenn (RZG) H.323 Videoconferencing IPP RoomsLecture Hall Garching3 / 2003 3 Beamer Smartboard Touch panel Video processor Audio mixer, 10 Mics PC 2, Monitor03/11/2003 Budapest, RP-Training & Workshop May 2004 46 47. Ulrich Schwenn (RZG) H.323 Videoconferencing IPP RoomsAUG Audio: Cardioid Plane Microphone 03/11/2003 Budapest, RP-Training & Workshop May 2004 47 48. Ulrich Schwenn (RZG) H.323 Videoconferencing IPP EFDA European Network VVVRVS T880 8 MbpsIL UKVVVVFINMDK VV T6000 / 3 T500 HGW W7-X T880 / 10 VV FRDE DFNVC 2 T6000 / 2 T880GAR T1000/ T500 / 15 VVESAUG GnuGK-ProxyVRVSVSVS128PT VV VRVS CH ITHU3 VVNIIF VV Aethra 2 VV2 VS NMNMVRVS 03/11/2003Budapest, RP-Training & Workshop May 2004 48 49. Ulrich Schwenn (RZG) H.323 VideoconferencingNIIF Videoconference Project World GK http://www.vidkonf.niif.hu Congratulations! 03/11/2003Budapest, RP-Training & Workshop May 200449 50. Ulrich Schwenn (RZG) H.323 Videoconferencing NIIF Videoconference ProjectOfficial Opening May 11, 2004 Check out photos taken at the ceremony by clicking here03/11/2003Budapest, RP-Training & Workshop May 200450 51. Ulrich Schwenn (RZG) H.323 Videoconferencing What Else? 05 - 10 / 2003?Why should CustomersAre there Alternatives? keep H.323?AccessGrid contra H.323VRVS contra H.323 IM = SIP contra H.323 Web Conferencing? AccessGrid Node NERSC Berkeley~100 nodes worldwideCommercial Solutionsavailable, but1-2 Technicians / node03/11/2003Budapest, RP-Training & Workshop May 2004 51 52. Ulrich Schwenn (RZG) H.323 VideoconferencingWhat Else? > 2003? 03/11/2003Budapest, RP-Training & Workshop May 2004 52 53. Ulrich Schwenn (RZG) H.323 VideoconferencingA. FlexederFuture of H.323 Video- Audio-Max. Data Rate EUR L. MaradonnastandardsstandardsDesktopsystems Hardware:Polycom 128 - 512 Kbps ca. 400 H. 261, H.263, H.264 G.711, G.722,ViaVideo 5.030 fps QCIF, CIF, 4CIFG.728VSX-3000Max 2 Mbps 4-9000Tandberg 1000H. 261, H.263, H.264 G.711, G.722, Max 768 Kbps 6-8000 CIFG.728VCON VIGO 64 Kbps 1,5 Mbps ca. 800 H.261, H.263, H.264G.711, G.722,vPoint QCIF, CIFG.723, G.728Version 5.1Desktopsystems Software:vPoint Version H.261, H.263, H.264G.711, G.722, 64 kbit/s 1,5 Mbps 575 for105.1QCIF, CIFG.723, G.728 Licences eConfH.261, H.263, H.264G.711, G.722, 32 kbit/s 3,0 Mbps 60 - 120 SQCIF, QCIF, CIF,G.723, G.729, 4CIF TDACNetMeeting H.263, H.263, H.264G.711,16 Kbps 400 Kbps no Update byVersion 3.01 QCIF, CIFG.723 30 fps MS since 2002, will be withdrawn 03/11/2003 Budapest, RP-Training & Workshop May 200453 54. Ulrich Schwenn (RZG) H.323 VideoconferencingFuture of H.323 Tests 2003/2004 Video- Audio-Max. Data RateEUR standardsstandardsSettopsysteme:Tandberg 880 H.261, H.263, H.264G.711,G.722,64 - 1500 Kbps8.000 13.000550, 770, 990QCIF, CIF, 4CIFG.728 15-60 fpsPolycom G.711, G.722,EX, VSX 7000 H.261, H.263 , H.264 G.728 56 - 2000 Kbps6.000 9.000 QCIF, CIF, 4CIF15-30 fps (ISDN, MCU?)Sony PCS-1WebConferencing:FVC: Click toH.261, H.263 G.711, ~18.400 for 10 lic.Meet Express SQCIF, QCIF, CIF G.722, Proprietory, expensiveG.728PolycomH. 261, H.263G.711, G.722,ca. 6.000 for 10 lic.WebOfficeQCIF, CIFG.728 ProprietoryVersion 5.1Sonstiges:VRVS H.261G.711 Max.Software free,Unreliable QCIF, CIF768 kbit/s ,30 fpsWebcam,Gateway toNo EchocancellingH.323 Nice Scheduling 03/11/2003 Budapest, RP-Training & Workshop May 2004 54 55. Ulrich Schwenn (RZG) H.323 Videoconferencing Optimal VC-RoomBackgroundLightingRoom for max. 10 peopleadjustable Special LightingAir Condition Speakers Walls & ceilingsKameras covered Smartboard with acousticallyDoors to technics damping materialcabinettVideoPresentation Cardioid Plane Microphone Laptop ConnectorsSpecially designed table Media Control Touchmonitor European Patent Office - 7 Rooms in Munich, Berlin, Den Haag, Vienna03/11/2003Budapest, RP-Training & Workshop May 200455 56. Ulrich Schwenn (RZG) H.323 Videoconferencing H.239 Interoperability 2004RZG-Tests Radvision Tandberg Polycom Polycom TandbergSonyVCON 05 / 2004MCU MCU MCUPolycom +++ Tandberg +?+ Sony + ?VCON +? +?RadvisionMCU ??+ ++ Tandberg MCU ++?+ ++ + ?+ ++ PolycomMCU Systems with announced H.239 2004 ? VNC 03/11/2003 Budapest, RP-Training & Workshop May 200456 57. Ulrich Schwenn (RZG) H.323 Videoconferencing Future of H.323 Some (Technical) Conclusions Desktops: ViaVideo for Linux, MACs no topic, VRVS, AG unknownEither stand-alone or MS solutions IM-Messenger: The whole business is afraid of MS (mice & cattiger); SIP is standard & supported by RadVisions MCUs now; H.264: H.264 by Tandberg, Sony & Polycom, ITU in 06 / 2003High-Resolution Video Conferencing this yearMultipoint:MPG - MCU at DFNVC working since April 29, 2003NIIF - MCU working since April 29, 2004 H.323 will be the only VC Infrastructurecommercially supported & generally applicablefor several (>4) years Lets use it! 03/11/2003Budapest, RP-Training & Workshop May 200457 58. Ulrich Schwenn (RZG) H.323 Videoconferencing Current RZG - Projects Administration, Scheduling, TMS, Lotus, Outlook? IPP - Gatekeeper, Proxy -> DMZ (2/2004) Expanding Infrastructure for MPG & HGF Recording VC + PPT (with d-Lecture, test operation)http://www.d-lecture.de/demo/ Streaming (possible with Polycom, Sony &Tandberg) QoS Control (DFN / RZG / AWI Project) WebConferencing not yet recommendable(Tests FVC CTM / Polycom WebOffice 8-9 / 2003) Access Grid (DEISA 2004) Same Drawbacks as VRVS Students from TUM & FHM, Practica, Diploma Collaborations: DFNVC, HGF, EFDA, ViDeNet, Industry03/11/2003 Budapest, RP-Training & Workshop May 2004 58 59. Ulrich Schwenn (RZG) H.323 Videoconferencing Psychology, Ergonomics &Acceptance of VC-Services Relative Importance of1 IP-Technics Hardware, Networking, Firewalls2 Facilities Audio, Video, Presentations / Applications3 User-System Interfaces Media Control4 Interoperability between different rooms AND persons5 Acceptance of the whole system by users is often mixed up, especially by scientists and even more byexperimentalists, tending to concentrate on tec-problems. Due to our experience the order from a users point of view is(from most important psychological to technical necessities):5>4 >3 >2 >1 Video Conferencing is a just another Service! 03/11/2003Budapest, RP-Training & Workshop May 200459 60. Ulrich Schwenn (RZG) H.323 VideoconferencingAcknowledgementsIPP Video Group: Paul Pflger, Henning Soenke, Kewin Stckigt NZL Thomas von Weber, Wolfgang Harwardt, Andreas Stareprawo IPP Sybilla Bunne, Hans PfeiffenbergerAWIHorst Wenzel et al. VCCGisela Maiss, Jrgen Hornung et al. DFNVC Karl Behler AUG, DirectorateIPPStudents 2003: A. Flexeder, L MaronnaTUMW. Steigemann, G. Neumann MPG-GV P. Giese, O. Hemming, J. How, V. SchmidtEFDAW.Bauer, A.W.Davis, N. Hahn, D. Heldner, T. KulaINDUSTRY W. Natzer, A. Seipel, U. Schmidt, J. Thiermeyer DaimlerChrysler tv.media, digitech,MediaPro, MVC, NTS, PolyCom, Radvision, SONY,Tandberg, VCON, VIPLA, VITEC, Wainhouse Research03/11/2003Budapest, RP-Training & Workshop May 2004 60 61. Ulrich Schwenn (RZG) H.323 VideoconferencingPolycom VSX 3000VC for the Bosses Tandberg 1000 2 Mbps H.323 1.1 Mbps 512 Kbps H.320 384 Kbps Optional Inbuilt MCU No No WLAN Yes SXGA Display XGA Yes PC monitor No 6-9 K Price 7-9 KNDAs from Polycom &Tandberg03/11/2003 Budapest, RP-Training & Workshop May 2004 61 62. Ulrich Schwenn (RZG) H.323 VideoconferencingEFDA -Teleconferencing 2003/4 Approximate status 2004 Now? Now? Old Labs Old Labs Ne tw orkVRVS/Mbone H.323H.320Phone Fusion La bora toryFire - La rge Sm a llLa rge Sma llLa rge Sm a llba ckupSta ffMbit Loa d Office s Office sOffice s w a llMR MR MR MRMR MR in MRUKAEA UK (Culha m La b) 200YYY NoneY Y NoneYY None ? 8

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