A free program for Android, by FreeConferenceCall.com.

Free Conference Call is a web-based application for hosting audio conferences with video conferencing and screen sharing. It provides a free service for unlimited audio conferences with up to 1,000 participants per meeting. It is the best solution for an organization that wants to hold a conference with a large number of participants without spending a penny.

It is easy to use and requires no special knowledge. It is also possible to have one-to-one and one-to-many calls.

Get this app from the Google Play Store.