# Henning Schulzrinne > German computer scientist **Wikidata**: [Q12175816](https://www.wikidata.org/wiki/Q12175816) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Henning_Schulzrinne) **Source**: https://4ort.xyz/entity/henning-schulzrinne ## Summary Henning Schulzrinne is a German computer scientist and a long-time professor at Columbia University. He is best known for key contributions to Internet multimedia protocols, including authorship of RFC 1889 and work on the Session Initiation Protocol (SIP) and the Real-time Transport Protocol (RTP), and for recognition such as induction into the Internet Hall of Fame. ## Biography - Born: 1960, Cologne - Nationality: Germany - Education: Educated at University of Massachusetts Amherst; educated at Columbia University - Known for: RFC 1889: RTP: A Transport Protocol for Real-Time Applications; Session Initiation Protocol; Real-time Transport Protocol - Employer(s): Columbia University (professor; start 1996-09-01); affiliated with University of Massachusetts Amherst - Field(s): Computer science; Internet multimedia protocols ## Contributions Henning Schulzrinne authored and co-authored foundational protocol specifications and standards for real-time Internet multimedia. His notable work includes RFC 1889 (RTP: A Transport Protocol for Real-Time Applications) and contributions to the Session Initiation Protocol (SIP) and the Real-time Transport Protocol (RTP). He led research and standardization efforts that shaped protocol design and practical implementations for Internet multimedia. His contributions were explicitly cited in major recognitions: the ACM fellowship citation notes his contributions to the design of protocols, applications, and algorithms for Internet multimedia, and the IEEE Internet Award acknowledges his formative contributions to the design and standardization of Internet multimedia protocols and applications. As a long-serving professor at Columbia University (professor since 1996), he has supervised doctoral students (doctoral advisor: Jim Kurose; doctoral student listed: Jae Woo Lee) and produced scholarly outputs tracked in bibliographic databases (DBLP author id s/HenningSchulzrinne, Google Scholar id 6IHX8J4AAAAJ). His public professional presence includes a Columbia homepage (http://www.cs.columbia.edu/~hgs) and curated author identifiers across academic indexes. ## FAQs ### Q: Who is Henning Schulzrinne? A: Henning Schulzrinne is a German computer scientist and Columbia University professor known for major contributions to Internet multimedia protocols, including RTP and SIP. ### Q: What protocols did he help create or standardize? A: He is known for RFC 1889 (RTP: A Transport Protocol for Real-Time Applications) and for work on the Session Initiation Protocol (SIP) and the Real-time Transport Protocol (RTP). ### Q: What major awards has he received? A: He was inducted into the Internet Hall of Fame (2013), named an ACM Fellow (citation for contributions to Internet multimedia; 2014/2015), and received the IEEE Internet Award (2016). ### Q: Where does he work and teach? A: He is a professor at Columbia University, with his professorship beginning in September 1996. He is also affiliated with the University of Massachusetts Amherst as part of his educational and professional background. ## Why They Matter Henning Schulzrinne’s work helped define how real-time multimedia is transported and signaled over the Internet. The protocols and specifications associated with his name—most visibly RTP and SIP—address core problems of packetizing, transporting, and initiating real-time audio and video sessions. Award citations from ACM and IEEE explicitly recognize his formative role in designing and standardizing Internet multimedia protocols and applications. Those recognitions and his induction into the Internet Hall of Fame indicate that his technical contributions influenced both standards bodies and deployed systems. As a professor at Columbia University since 1996, he has also trained doctoral students and contributed to the academic record through publications and author identifiers tracked in major bibliographic services. Without his standardization and design work, the technical foundations for Internet multimedia signaling and transport would have lacked several of the protocols and design patterns that awards and professional records credit to him. ## Notable For - Authorship and contribution to RFC 1889: "RTP: A Transport Protocol for Real-Time Applications." - Key contributions to the Session Initiation Protocol (SIP) and the Real-time Transport Protocol (RTP). - Induction into the Internet Hall of Fame (2013). - Named an ACM Fellow for contributions to Internet multimedia protocol and application design (ACM fellowship citation; 2014/2015). - Recipient of the IEEE Internet Award for formative contributions to Internet multimedia protocols and standardization (2016). ## Body ### Personal and identity - Full name: Henning Schulzrinne. - Aliases: H. Schulzrinne. - Born in 1960 in Cologne. - Citizenship: Germany. - Sex/gender: Male. - Languages: German. ### Education - Educated at University of Massachusetts Amherst. - Educated at Columbia University. - Doctoral advisor: Jim Kurose. ### Academic and professional positions - Employer: Columbia University. - Title/role qualifier: professor. - Professorship start date: 1996-09-01. - Affiliated with University of Massachusetts Amherst (listed in affiliated/education fields). ### Research, standards, and publications - Notable works listed: - RFC 1889: "RTP: A Transport Protocol for Real-Time Applications." - Session Initiation Protocol (SIP). - Real-time Transport Protocol (RTP). - Bibliographic and author identifiers: - DBLP author id: s/HenningSchulzrinne. - Google Scholar id: 6IHX8J4AAAAJ. - IEEE Xplore author id: 37268838600. - ACM Digital Library author ids: 81100477988, 81100477978. - Dimensions author id: 015557631277.93. - Mathematics Genealogy Project id: 76298. - Freebase id: /m/076zsft. ### Awards and honors - Internet Hall of Fame inductee (point in time: 2013). - ACM Fellow (citation: For contributions to the design of protocols, applications, and algorithms for Internet multimedia; point in time: 2014; ACM Fellow start_time qualifier: 2015-01-08). - IEEE Internet Award (point in time: 2016; citation: For formative contributions to the design and standardization of Internet multimedia protocols and applications). ### Mentorship and students - Doctoral student listed: Jae Woo Lee. ### Public presence and resources - Personal/professional website: http://www.cs.columbia.edu/~hgs. - Image resource: https://commons.wikimedia.org/wiki/Special:FilePath/SIPNOC_2012_-_FCC_CTO_Henning_Schulzrinne_(7838924022).jpg (point in time: 2012-06-26). ### Identifiers and metadata - Wikipedia title: Henning Schulzrinne. - Wikimedia Commons category: Henning Schulzrinne. - Sitelink count: 6. ## References 1. Mathematics Genealogy Project 2. [ORCID Public Data File 2023](https://pub.orcid.org/v3.0/0000-0001-7604-1122/employment/334306) 3. [Source](https://www.internethalloffame.org/inductee/henning-schulzrinne/) 4. [Source](https://www.acm.org/media-center/2015/january/fellows-2014) 5. [Source](https://www.ieee.org/content/dam/ieee-org/ieee/web/org/about/awards/recipients/internet-rl.pdf) 6. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0001-7604-1122/researcher-urls/285079)