ooVoo 1.5.1.93 for Windows a great chat program. ooVoo has many great features. Video calls with up to six people at once to video messaging to chat and file transfer capabilities. ooVoo has this capabilities FREE calls from ooVoo to a landline or mobile phone in the USA or Canada. Start a face-to-face conversation and include up to six people. Tired of typing emails. Give your fingers a break and send a video message to one friend or a group.