Schulzrinne studied
engineering management at the
Department of Electrical Engineering and Information Technology of the German
Technische Universität Darmstadt in
Darmstadt, where he earned his
Vordiplom (cf.
Diplom), then went on to earn his M.Sc. at the
University of Cincinnati and his Ph.D. at the
University of Massachusetts Amherst. From 1992 to 1994 he worked for
AT&T Bell Laboratories. From 1994 to 1996 he worked in
Berlin at the
Forschungs-Institut für Offene Kommunikationssysteme (GMD FOKUS), an institute of the now-defunct
Gesellschaft für Mathematik und Datenverarbeitung (GMD), which became part of the
Fraunhofer Society as
Fraunhofer Institute for Open Communication Systems. He joined the faculty of the
Computer Science department at
Columbia University in 1998, and served as chair and
Julian Clarence Levi Professor. He served as a co-chair of the
Internet Technical Committee of the
IEEE Communications Society. Schulzrinne is an editor of the
Journal of Communications and Networks. Schulzrinne has contributed to standards for
voice over IP (VoIP). He co-designed the
Session Initiation Protocol along with
Mark Handley, the
Real Time Streaming Protocol, the
Real-time Transport Protocol, the General Internet Signaling Transport protocol, part of the
Next Steps in Signaling protocol suite. Overall, as of March 7, 2024, his publications have been cited over 65,000 times, and he has an
h-index of 95. Schulzrinne was the chief technology officer (CTO) for the United States
Federal Communications Commission, from December 19, 2011 to 2014. He was elected as an
Association for Computing Machinery (ACM) Fellow in 2014 for contributions to the design of protocols, applications, and algorithms for Internet multimedia. In 2006, Schulzrinne was elevated to
IEEE fellow for contributions to the design of protocols, applications, and algorithms for Internet multimedia. ==References==