摘要：Abstract: The objective of this paper is to present two low cost videoconference applications being developed in Brazil that can be used also in education: Mconf and Multipresence. Mconf is an open source, distributed, scalable and federated global web conferencing system, interoperable with SIP and mobile devices. The Multipresence system allow interoperation of many technologies to comply with a multitude of devices and communication standards, such as the following: Telepresence room in high definition (Full HD); Ultra-telepresence room in ultra-high definition (UHD 4K); Content sharing among the participants (simultaneous upload, rearrangement and visualization of images, texts and applications); Legacy videoconferencing systems; High definition videoconferencing through a personal computer application program; Web conferencing (web browser); Mobile devices and SIP phones.
