Videoconferences H.323/SIP

Videoconferencing tools allow you to transfer audio, video or monitor images between two or more communicating parties. The offered videoconferencing solutions provide the following features by default:

  • voice connection – a participant with a microphone can broadcast its voice to others, other participants with speakers can hear connected participants;
  • image connection – participants with camera can broadcast their images to others;
  • share PC desktop – participants share image output from their devices (pc, notebook, tablet);
  • share a specific application window – if you use SW clients, it is also possible to share individual application windows.

The University has access to CESNET's videoconferencing infrastructure for multipoint video conferencing. Through the reservation system, one-time or regularly repeated virtual videoconferencing rooms can be created. For your meetings you can also use one of the MU meeting rooms equipped with the necessary equipment. The second option is to install a software client on your own personal or office computer, phone or tablet.

Videoconferencing Environment

There are many videoconferencing systems. We support video conferencing based on the H.323/SIP protocols provided by CESNET. With limitation, we provide basic support for working with MS Teams.


The University, in cooperation with CESNET, provides a complete HW and SW infrastructure to allow multipoint video conferencing in selected meeting rooms and lecture halls at MU.

  • video and audio transmission

  • screen sharing (HW units)

  • sharing of individual applications (SW clients)

Advantages and Disadvantages
  • High audio and video quality when using HW in conference rooms.

  • Connection support from regular telephone lines.

  • Video conferences can be recorded.

  • Communication can be encrypted.

Client 1)
We Offer

One-time and also repeated booking of videoconferencing via reservation system

1) Audio and video quality is determined by the quality of the network connection, the quality of the connected microphone and the camera (it may be worse than the HW units at MU).

What does H.323 and SIP mean? 

H.323 is an recommendation of ITU-T that defines protocols for audio-visual communication sessions on any packet network. SIP (Session Initiation Protocol) is a signaling protocol used in Internet telephony and VoIP (Voice over Internet Protocol). According to videoconferences, there are two different approaches that are easily interconnected. HW equipment manufacturers typically implement both H.323 and SIP protocols into their devices. SW clients are typically either SIP (ClearSea) or H.323. CESNET's infrastructure is H.323/SIP, and therefore it does not matter if end-user has H.323 or SIP client.

Support and Trainings

If you have no experience with videoconferencing, we offer:

  • an initial consultation aimed to choose the right technology solution which will fulfill your needs
  • training groups and individuals
  • support for the deployment of the selected technology.

Eligibility and Requirements

The service is available to all employees and students from institutions that are members of CESNET. The service is provided on a "best effort" basis.


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