BigBlueButton is conceived for videoconference calls with large numbers of participants. With no limits on the number of users and often high traffic spikes, the solution shows no signs of weakness. The platform has the advantage of being as stable and easy to use as other popular video conferencing solutions, with the added option of controling participant permissions, for example. In order to ensure stability Scaleway has chosen very large servers for its back-end infrastructure rather than several smaller ones, and has therefore opted for powerful BareMetal servers with a hardware configuration using no hypervisor or virtualization layer.
Source: Scaleway provides BigBlueButton video conferencing hosted on its BareMetal servers