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.

All three systems meet the necessary requirements for data protection and IT security, but Zoom-X is only approved for teaching (courses with more than 300 participants).

The three services differ in terms of their possible functions: While BigBlueButton is suitable for all types of application scenarios and rooms can also be created directly in a course or in a group in the ILIAS learning platform, DFNconf is mainly recommended for meetings or working group sessions. Zoom-X can be used on request if there are special requirements due to very large courses.

Scenario BigBlueButton DFNConf Zoom-X
Lecture < 300 participants - -
Lecture > 300 participants -
Lecture > 500 participants - -
Seminar/Exercise - -
Conference - -
Workshop -
Meeting -
Session of students - -
Oral exam -
Public lecture -

Function BigBlueButton DFNconf Zoom-X
Max. Participants per room  500 50 1000
Max. parallel activatable/viewable webcams 100/12 50/34 200/25
Use via the browser yes yes no
Telephone dial-in yes yes no
Access via SIP / H.323 no yes no
Waiting Room/Lobby yes yes yes
Share screen yes yes yes
Share presentation yes yes yes
Share video/audio yes yes yes
Chat yes yes yes
Vote/survey yes no no
Whiteboard yes no yes
Shared notes yes no yes
Break-out rooms yes no no
Recording capability yes yes no
ILIAS integration yes no no
Virtuel background yes no yes
Video streaming with web link no yes 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