A medical consulting user trial will be conducted in order to demonstrate that wireless access to fixed ATM networks is feasible. A vital part of the software for the user trials is a video conferencing and collaboration software, which enables the users to set up and maintain QoS aware video conferences over the Wireless ATM network. In addition, standard network without QoS support can be used, too. The software is independent from hardware capture cards and media codecs, which makes it easy for commercial exploitation. Two main parts enable collaboration between several users: the video conferencing part and the application sharing part. The video conferencing package records audio and video, compresses it with a suitable media compresser and sends it to the network. On the remote side, the media streams are reassembled, decoded and displayed. Several users can communicate via a conferencing server. A special video codec (WaveVideo) copes with transmission channel impaiments based on Wavelets. The application sharing part captures all graphic output from the shared applications and distributes it to a graphic engine on the remote host, which renders then the graphic primitives. Telepointers are shared between the users so that important parts can be highlighted. The user friendliness will be determined during the user trials. A MPEG-2 Transport Stream player was developed for Windows NT platform for decoding MPEG-2 transport streams. A XRay viewing application was developed for displaying DICOM files containing medical images and videos.