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					                                            BZVD
BZVD            Dresden University of Technology
Tasks
                Computer Centre
                Support Centre for Video Conference Services (BZVD)
User Poll

Purpose          Wolfgang Wünsch
MCU              Christoph Fleck
Tests

H.323 Matrix

Accessories    Video Conferences in the German Research Network
Address Book

Information

To Do

Links
               TERENA Networking Conference 2001
               ‘Highlighting Advanced Networks and Services‘
               Antalya, Turkey
               14 - 17 May 2001
            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                             BZVD
BZVD            Dresden University of Technology
Tasks
                Computer Centre
                Support Centre for Video Conference Services (BZVD)
User Poll
                Zellescher Weg 12
Purpose
                01062 Dresden
MCU             Project Manager:         Dipl.-Ing. Wolfgang Wünsch
Tests           Staff:          Dipl.-Inform. Undine Grohmann
                                Dipl.-Ing. Christoph Fleck
H.323 Matrix
                                Dipl.-Ing. Detlef Makowitz
Accessories
                                Dipl.-Inform. Frank Schulze
Address Book    Students:       Reinhard Förster, Thomas Uhle
Information                       André Schulze, Tino Schinnerling

To Do            Tel.:   (0049)-0351-463-5653
                 Fax:    (0049)-0351-463-7116
Links
                 Video: video.urz.tu-dresden.de
                         (0049)-0351-463-8688
                 E-Mail: bzvd@tu-dresden.de
                 WWW: http://bzvd.urz.tu-dresden.de
            Video Conferences in the German Research Network         TNC 2001   16 May 2001
                                       Tasks of BZVD
BZVD

Tasks

User Poll
                                                               Maintenance of local
Purpose             Education                                  network & equipment
MCU

Tests
                                        The BZVD as
H.323 Matrix
                                      a service centre
Accessories

Address Book
                                           of DFN
Information
                    User consulting                                  Application searches
To Do
                                                                            & tests
Links
                                       Providing video conferences
                                              (as a service)



            Video Conferences in the German Research Network     TNC 2001   16 May 2001
                                          User Poll
BZVD

Tasks
                               Use of Video Conferencing
User Poll

Purpose             30% short-term                              13% not planned
MCU

Tests

H.323 Matrix
                                                               57% already used
Accessories

Address Book

Information

To Do           Frequency:                Up to 15 conferences per month
Links           Average duration:         Up to 1 hour
                Main technology:          MBone, H.323


                                                                                   October 1999
            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                     Purpose of BZVD
BZVD
                • Support of the DFN community with
Tasks
                  planning, installation and use
User Poll
                  of video conference services
Purpose

MCU
                • Video conferencing as a regular service in the WiN
Tests

H.323 Matrix

Accessories
                • Co-operation with other projects of the DFN
Address Book

Information     • Knowledge transfer between local partners in the WiN
To Do

Links
                • Efforts and benefits  synergy effects



            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                        User Consulting and Demonstrations
BZVD
                Introduction to standard users:
Tasks

User Poll
                • Opportunities and limitations of video conferencing
Purpose
                • Hardware and software look-and-feel
MCU
                • Recommendation: H.323 or MBone tools
Tests

H.323 Matrix

Accessories     Users with special demands:
Address Book

Information
                • Help on selecting hardware and software
To Do
                • Supporting with first steps
                • H.323 and MBone tools and others
Links
                • ATM, ISDN (H.320), gateway solutions


            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                             Providing Video Conferences
BZVD

Tasks
               Support for users with our equipment:
User Poll
               • during usage mobile BZVD communication equipment
Purpose
                 (e.g. broadcasts of conferences / meetings)
MCU            • Provide a stationary video conferencing room for groups
Tests

H.323 Matrix   Usage:
Accessories
               • Ohio State University, Columbus
Address Book

Information
               • Demonstration for TIB e.V.
                 (Technology & Innovations Consulting for Employees, Hamburg)
To Do

Links
               • Tests in co-operation with the Max Planck Society
               • etc.


            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                Network of Competence
BZVD

Tasks

User Poll
                Partners  Network of local competences in the WiN
Purpose
                • Contacts with app. 20 organisations and institutions
MCU

Tests           • 8 different computer centres in Niedersachsen and
H.323 Matrix
                  6 other research institutions in Germany
Accessories     • Deutscher Wetterdienst,
Address Book      Virtuelles Theater Bochum,
Information       Europa Universität Frankfurt/Oder
To Do             and other
Links
                • (With single institutions at the moment, no network yet)
                • contacts are presently rather bilateral, not yet interlinked

            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                  MCU Service of DFN
BZVD
               Application scenarios:
Tasks          • Directors, managers
User Poll      • Scientists
Purpose

MCU            Demands:
Tests
               • Reliable and unbureaucratic management of the MCU
H.323 Matrix
               • Reservation tool for the MCU with direct users access
               • Video quality: at least 384 kbps
Accessories
               • Audio quality: G.722
Address Book
               • T.120 for application sharing
Information
               • Continuous presence: display of the last 4-5 participants
To Do
               • Display of names of the participants of a conference
Links          • Reliable service, hotline, FAQs
               • Automation of the service: directory, configuration,
                 billing, monitoring, gatekeeper (centralised / distributed)

            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                  MCU Service of DFN
BZVD
               Development tasks
Tasks
               DFN
User Poll
                 • Provision of a reservation system
Purpose
                 • Installation of components
MCU
                 • Installation of a monitoring system
Tests
                 • Installation of a service administration
H.323 Matrix     • Recommendations for end systems / clients
Accessories
               User
Address Book
                  • Installation of a gatekeeper (if necessary an MCU)
Information

To Do          Time scheduling
Links             Start piloting in summer 2001 with restricted
                  functionality (lack of reservation system)
                  and limited number of users

            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                 Tests of H.323 Devices
BZVD            Purpose: MCU services by DFN in WiN
Tasks
                Terminals: end devices
User Poll

Purpose             Polyspan: Viewstation 128, Viewstation 512, ViaVideo
                    Sony: Contact 1600
MCU
                    Tandberg: 1000
Tests
                    VCON: Escort 25, Crusier 384, MC 8000, Falcon IP, ViGO Pro
H.323 Matrix        Intel: Proshare 500, TeamStation
Accessories         Elsa Vision II, NetMeeting 3.01, SunForum 3.1 & 3.0
Address Book
                MCUs: multi control unit for group conferences
Information

To Do               FVC:             Click To Meet
Links               ACCORD:          MGC 100
                    RADVision:       MCU-323
                    ezenia!:         encounter 1000 NetServer
                                reliable, in active development, no further development, instable
            Video Conferences in the German Research Network       TNC 2001   16 May 2001
                                  Tests of H.323 MCUs
BZVD
               MCUs: multipoint control units for H.323
Tasks

User Poll
                   FVC: Click To Meet
Purpose

MCU

Tests                                                      ACCORD: MGC 100
H.323 Matrix

Accessories

Address Book

Information

To Do               RADVision: MCU-323
Links




            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                     Tests of H.323 MCU‘s
BZVD            FVC: Click To Meet (Demo Version)
Tasks           • Usage and registeration is done by the members

User Poll       • Closed groups with up to 15 users, small conferences with 4 users
                • Scheduled or ad-hoc Conferences, browser-based
Purpose

MCU
                ACCORD: MGC 100
Tests
                • Administrator permanently needed, registration of users required
H.323 Matrix
                • Large, closed groups, large conferences possible
Accessories
                • Administrator starts conference
Address Book    • Unique functions: video splitting modes, speed matching
Information

To Do           RADVision: MCU-323
Links           • Usage by users themselves, no registration required
                • Medium-sized of conferences
                • Conferences start with dialing from terminal
                • Audio problems with NetMeeting
            Video Conferences in the German Research Network            TNC 2001   16 May 2001
                                      Results of Tests
BZVD

Tasks
               • Group conferences with more than 4 terminals: difficult
User Poll      • Every participant with bad audio equipment cause disturbances
Purpose
               • Video coding without special hardware is not optimal
MCU
               • Video display on TV - best solution, but expensive
Tests

H.323 Matrix   • Compatibility issues between certain H.323 devices
Accessories  • Gatekeeper is part of the system
Address Book   concept for the WiN
Information    • Quality of G-WiN satisfies the needs
To Do
               • Local problems occur sometimes
Links
               • MCU: highest requirements in the network


            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                             Compatibility Matrix for H.323
BZVD

Tasks

User Poll

Purpose

MCU

Tests

H.323 Matrix

Accessories

Address Book

Information

To Do

Links




               [2] http://bzvd.urz.tu-dresden.de/vc-systeme/matrix/
            Video Conferences in the German Research Network     TNC 2001   16 May 2001
                                        Accessories
BZVD

Tasks

User Poll

Purpose

MCU

Tests

H.323 Matrix

Accessories

Address Book

Information

To Do

Links




            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                            Video Conference Address Book
BZVD            • List of video conference users
Tasks           • Users create and change entries individually
User Poll       • Listing of the entries is generally accessible
Purpose
                                               [3] http://bzvd.urz.tu-dresden.de/adressen/adr.php

MCU

Tests

H.323 Matrix

Accessories

Address Book

Information

To Do

Links




            Video Conferences in the German Research Network      TNC 2001   16 May 2001
                                    Information of BZVD
BZVD            Information available in German only [1]:
Tasks
                • Audio / video: signals, connectors, codings
                • Room equipment and design
User Poll

Purpose
                • Video conference hardware & software:
MCU
                     • Chosen products, own tests
Tests
                     • Long list of manufacturers, distributors, services
H.323 Matrix
                • MBone software archives
Accessories

Address Book
                • Poster: audio, video, MBone [4]
Information     • MBone Manual
To Do           • PC hardware: audio / video cards
Links
                • Notebook for video conferences

                English translation of unique information upon request
                (compatibility matrix)
            Video Conferences in the German Research Network       TNC 2001   16 May 2001
                                            To Do
BZVD

Tasks
               • H.323 over Firewall
User Poll      • Gatekeeper
Purpose
               • QoS
MCU

Tests

H.323 Matrix

Accessories

Address Book

Information

To Do

Links




            Video Conferences in the German Research Network   TNC 2001   16 May 2001
                                                Links
BZVD            [1]      http://bzvd.urz.tu-dresden.de/
                [2]      http://bzvd.urz.tu-dresden.de/vc-systeme/matrix/
Tasks
                [3]      http://bzvd.urz.tu-dresden.de/adressen/adr.php
User Poll
                [4]      ftp://ftp-mm.urz.tu-dresden.de/
Purpose                  pub/dokumentationen/allgemein/audio-video-mbone_poster.pdf

MCU

Tests

H.323 Matrix

Accessories

Address Book

Information

To Do

Links




            Video Conferences in the German Research Network         TNC 2001   16 May 2001

				
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