Movi is a home video conferencing software that is able to connect desktop to desktop. Skype allows two-way video conferencing with the sharing of screens for a presentation.
It is similar to Movi and provides a commonly used software to connect with outside users.
Recommendation: create a professional account for use as an instructor
If you want your class to be able to speak with the other person on the Skype conference, consider requesting the ClearOne Speaker/Mic connection that can be plugged into your laptop. It allows pick-ups for the entire classroom for small to medium sized classrooms.
Contact Instructional Technology (512-313-4007).