The BigBlueButton offers interactive classroom through feature likes whiteboard, polls, notes and much more.
BBB integrates really well with Moodle, Instructure, Schoology, Jenzabar, and D2L and more.
BigBlueButton is an open-source project, making efforts towards building the best interactive conferencing system available.
BBB works on every device, its a cloud based application hence your data is 100% secure and safe.
Students and Teachers can share their live webcams and live session can be recorded for further use.
Supports voice over IP (VOIP) conferencing. Your participants can dial in using their telephones and listen to your conference.