Master of Science, Budapest University of Technology and Economic, 1983. Doctor, Budapest University of Technology and Economic, 1987. Doctor of Philosophy, Budapest University of Technology and Economic, 1997.
Research engineer BEAG Electrical Factory, Budapest, 1985—1987. Senior lecturer Budapest University of Technology and Economic, 1987—2000, associate professor telcomm. and media information, since 2000. Research reviewer European Commission, Brussels, 1999—2002.
Elder Budafok Reformed Church, Budapest, 1990—2006, senior elder, since 2006. Board directors Christian Solidarity International, Hungary, since 2004. Member Community of Reconciliation, Transylvanian.
Member of Science Society Telecomm. (member prize committee since 2001, Wolfgana Van Kempeln award 1995, 2000), International Speech Communications Association, Hungary Academy of Sciences (member complex committee acoustics since 1998, member committee telecommunications since 2006).
Married Zsuzsanna Potordi, January 22, 1983. Children: Geza Kalman, Klara, Vajklstran, Zsuzsanna.