Main Content

Video and Web Conferences

Members of Philipps-Universität Marburg can use the following systems for video and web conferences in teaching, research and administration.

Note: The web conferencing service Adobe Connect (in ILIAS: object "Online Meeting") can currently only be used to a limited extent, as it is not possible for the operator, the DFN-Verein, to expand its capacity. All three systems meet the necessary requirements for data protection and IT security. However, they differ in terms of their functions and possible application scenarios:

Scenario DFNconf BigBlueButton Cisco Webex
Lecture < 200 participants -
Lecture > 200 participants - -
Seminars -
Conference < 150 participants -
Conference > 150 participants - -
Workshop -
Session of students - -
Oral exam
Public lecture -

Function DFNconf BigBlueButton Cisco Webex
Max. Participants per room  23 200 1000
Max. parallel activatable/viewable webcams 23 200/9 200/25
Telephone dial-in yes yes yes
Access via SIP / H.323 yes planned yes
Waiting room no yes yes
Share screen yes yes yes
Share presentation yes yes yes
Share video no yes yes
Chat yes yes yes
Voting/survey no yes yes
Whiteboard no yes yes
Shared notes no yes yes
report no yes yes
Break-out rooms no yes yes
Recording capability yes yes yes
ILIAS integration no yes no
Virtuel background no yes yes
Video streaming with web link yes planned no

Target group

Teachers, staff and students


For organizers: see services page of the respective system

For participants: No account required, PC/laptop or mobile device with current browser as well as headset (or loudspeaker and microphone), webcam if necessary.

Your benefit

Online execution of

  • meetings,
  • conferences
  • training courses,
  • webinars and lectures


In operation.

  • Support and Help

    If you have any questions about the web conferencing services, please contact

  • Worth knowing

    Rooms for video and web conferences
    In the multipurpose building, the HRZ provides video conferencing equipment in one seminar room (up to 20 people) and one smaller meeting room (up to 6 people).

    About video and web conferencing
    A web or video conference enables voice and image communication with one or more participants via the Internet. Similar to IP telephony, voice transmission is in good quality and almost without delay. With the video image, gestures and facial expressions of the participants can be used for communication. Compared to a telephone conversation, web or video conferencing therefore enables more direct contact with the other participants. Particularly when there are several participants, this makes it easier to conduct the conversation. In addition, a screen can be presented by one participant in a web or video conference.

    Quality and bandwidth
    Web and video conferences are designed for good and latency-free audio and image quality and therefore require an appropriate bandwidth (performance of the internet connection) to maintain stable connections. At workstations within universities, this is not a problem. If participants are only poorly connected (e.g., from a private Internet access), a test run should be carried out. Audio quality is particularly important for successful communication. Feedback and noise should be minimized. For this purpose, either good headsets or, for a group, a conference microphone with integrated loudspeaker and echo cancellation should be used.

  • Regulations for use and information on data protection