Henning Schulzrinne is a German-American computer scientist, who led research and development of the

voice over IP Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of speech, voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms In ...

network protocols.

Life

Schulzrinne studied

engineering management Engineering management is the application of the practice of management to the practice of engineering. Engineering management is a career that brings together the technological problem-solving ability of engineering and the organizational, admini ...

at the Department of Electrical Engineering and Information Technology of the German

Technische Universität Darmstadt The Technische Universität Darmstadt (official English name Technical University of Darmstadt, sometimes also referred to as Darmstadt University of Technology), commonly known as TU Darmstadt, is a research university in the city of Darmstadt ...

Darmstadt Darmstadt () is a city in the States of Germany, state of Hesse in Germany, located in the southern part of the Frankfurt Rhine Main Area, Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it th ...

, where he earned his ''Vordiplom'' (cf.

Diplom A ''Diplom'' (, from grc, δίπλωμα ''diploma'') is an academic degree in the German-speaking countries Germany, Austria, and Switzerland and a similarly named degree in some other European countries including Albania, Bulgaria, Belarus ...

), then went on to earn his M.Sc. at the

University of Cincinnati The University of Cincinnati (UC or Cincinnati) is a public research university in Cincinnati, Ohio. Founded in 1819 as Cincinnati College, it is the oldest institution of higher education in Cincinnati and has an annual enrollment of over 44,00 ...

and his Ph.D. at the

University of Massachusetts Amherst The University of Massachusetts Amherst (UMass Amherst, UMass) is a public research university in Amherst, Massachusetts and the sole public land-grant university in Commonwealth of Massachusetts. Founded in 1863 as an agricultural college, it ...

. From 1992 to 1994 he worked for

AT&T Bell Laboratories Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984), then AT&T Bell Laboratories (1984–1996) and Bell Labs Innovations (1996–2007), is an American industrial research and scientific development company owned by mult ...

. From 1994 to 1996 he worked in

Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitue ...

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 The Fraunhofer Society (german: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., lit=Fraunhofer Society for the Advancement of Applied Research) is a German research organization with 76institutes spread throughout Germany ...

Fraunhofer Institute for Open Communication Systems The Fraunhofer Institute for Open Communication Systems, or FOKUS, is an organization of the Fraunhofer Society. Headquartered in Berlin (Charlottenburg), the institute is engaged in applied research and development in the field of Information an ...

. He joined the faculty of the

Computer Science Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, information theory, and automation) to Applied science, practical discipli ...

department at

Columbia University Columbia University (also known as Columbia, and officially as Columbia University in the City of New York) is a private research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church in Manhatt ...

in 1998, and served as chair and

Julian Clarence Levi Julian Clarence Levi (December 8, 1874 – August 23, 1971) was an American architect, watercolor painter, and philanthropist. Biography Levi was born on December 8, 1874, on West 51st Street in Midtown Manhattan. His father, Albert Augustus ...

Professor. He is a co-chair of the

Internet Technical Committee The Internet Technical Committee (ITC) is a joint committee of the Internet Society (ISOC) and the IEEE Communications Society (ComSoc). The Internet Technical Committee was officially created in December 1994. Vision and Goals The Internet Soc ...

of the

IEEE Communications Society The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operation ...

. Schulzrinne is an editor of the

Journal of Communications and Networks The ''Journal of Communications and Networks'' (print: , online ; formerly known as the ''International Journal of Digital & Analog Cabled Systems'') is a scientific journal published by the Korean Information and Communications Society and tech ...

. Schulzrinne has contributed to standards for

(VoIP). He co-designed the

Session Initiation Protocol The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications. SIP is used in Internet telephony, in private IP telepho ...

along with

Mark Handley Mark Handley is a playwright and screenwriter. In 1977, he and his wife moved to the Pacific Northwest where they lived in isolation in a log cabin that they built themselves. He is best known for his play ''Idioglossia An idioglossia (from ...

, the

Real Time Streaming Protocol The Real Time Streaming Protocol (RTSP) is an application-level network protocol designed for multiplexing and packetizing multimedia transport streams (such as interactive media, video and audio) over a suitable transport protocol. RTSP is us ...

, the

Real-time Transport Protocol The Real-time Transport Protocol (RTP) is a network protocol for delivering audio and video over IP networks. RTP is used in communication and entertainment systems that involve streaming media, such as telephony, video teleconference applicatio ...

, the General Internet Signaling Transport protocol, part of the

Next Steps in Signaling Next Steps in Signaling (NSIS) was an Internet Engineering Task Force working group focusing on the design of a next generation signaling protocol framework and protocol specifications. The NSIS working group was chartered in late 2001 to work on a ...

protocol suite. Overall, as of November 5, 2015, his publications have been cited over 45,000 times, and he has an

h-index The ''h''-index is an author-level metric that measures both the productivity and citation impact of the publications, initially used for an individual scientist or scholar. The ''h''-index correlates with obvious success indicators such as winn ...

of 80. Schulzrinne was the chief technology officer (CTO) for the United States

Federal Communications Commission The Federal Communications Commission (FCC) is an independent agency of the United States federal government that regulates communications by radio, television, wire, satellite, and cable across the United States. The FCC maintains jurisdiction ...

, from December 19, 2011 to 2014. He was elected as an

Association for Computing Machinery The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional member ...

(ACM) Fellow in 2014 for contributions to the design of protocols, applications, and algorithms for Internet multimedia.

References

External links

Personal website
{{DEFAULTSORT:Schulzrinne, Henning Columbia University faculty Columbia School of Engineering and Applied Science faculty Living people German computer scientists German expatriates in the United States Scientists from Cologne Chief technology officers Year of birth missing (living people) Technische Universität Darmstadt alumni Federal Communications Commission personnel Obama administration personnel