A 400-MHz video card is required for the smooth functioning of ooVoo.At least 4 GB of RAM is necessary for smooth video calling on ooVoo.A 1.2-GHz processor is necessary for running ooVoo smoothly without any lag.ooVoo runs on devices running Windows XP or higher.ooVoo is cross-platform, allowing users to connect from any device they like. Once that is done, simply sign in with your ooVoo account to start calling your friends anytime you want. All you need to do is download the ooVoo app, set up a webcam on your computer, and you need to have a stable internet connection. Looking for a way to talk to ten different people at the same time online? Well then look no further, as ooVoo is the perfect app for you? ooVoo is a software that allows you to host video calls with up to 12 different people over the internet.