If both MCUs cascade end the conference on the PictureTel was empty at the moment that the cascading started, then some video conferencing stations cannot send video o the PictureTel until the conference is completely cleared. The previous effectively means that in a combination of a RadVision and PictureTel MCU, the RadVision must initiate the cascade. We only observed this phenomena using VCON video conferencing stations. 15.0.4 How to behave Cascaded conferences should have a chairman that decides who can speak. If too many people speak at the same time the conference will be chaotic.
Video switching takes time.
Don't interrupt if you do not immediately see the person that is speaking. Remember that somebody may see you even when you are not speaking. If you want to be sure not too be seen, it is recommended to turn away the camera when not speaking for a long time. The microphone should be muted in software and not by turning of the microphone itself. Here we will describe the test results of a cascaded conference using the PictureTel 330 and RadVision MCU-323.