Tõnu Trump received his PhD degree from the Tallinn University of Technology in 1994. After his postgraduate studies at Royal Institute of Technology, Stockholm, he joined Ericsson AB in Stockholm, where he worked until 2006. His final position was as expert in echo cancellation and voice enhancement devices. From 2002 to 2006, he was the rapporteur of study group 16 question 17 ‘voice gateway equipment’ at ITU-T in Geneva. From 2007 to the beginning of 2017 he was professor of signal processing at Tallinn University of Technology. At the present time, he is a consultant at Virgostell OÜ. Prof. Trump has published more than 70 papers and is the author of 11 patents. He is a senior member of IEEE.