It is probably a couple of decades now that videoconferencing (VC) technologies have been commercially offered and used in universities across the globe. Earlier systems used normal telephone lines, and later came digital phone lines (ISDN). The ISDN type is still in use in some places, it is fairly expensive to use. First, you need a dedicated line which cost monthly to keep and then you pay by the hour of usage and you pay long distance if it is so. Things have changed a little. With widespread availability of IP networks, unlike ISDN, we now have everything is needed to make audio-video calls from anywhere, virtually at no cost to the user. Continue reading Pervasive Videoconferencing Technologies in Higher Education – Koorus Bookan