The maximum number of video windows per call is 12. This can include a combination of PC, Mac, and mobile participants.
Mobile users can see up to 4 video windows at once*. However, they have the option to choose which 4 callers display on their device by simply dragging the selected profile pictures into their video chat window.
If you have ooVoo credits, you can dial-in an additional 6 audio-only participants to PC or Mac. They will be able to hear the audio of the call, but they will not have access to its video.
There are no limits to the number of video calls you can make, and there is no maximum length for calls.
*Certain devices may only support one video window at a time.