BigBlueButton

BigBlueButton is an open source web conferencing system for on-line learning. The LTI integration enables teachers to (a) embed BigBlueButton virtual classes within their course to provide on-line office hours, small group collaboration, and on-line lectures, (b) record sessions, and (c) manage recorded sessions. With our hosted solution, recordings of your online sessions remain in your online course.

Learning Management System: 
Canvas
Sakai