Prof. Dr.-Ing. Jörg Ott

Adjunct Professor

Research units & titles

Artistic and research interests

Jörg's research interests are in network architectures, protocol design, and networked systems, from modeling to implementation. His current research areas include communication in challenged networks, particularly delay-tolerant/mobile opportunistic networking; adaptive real-time communication, information-centric networking, and network measurements. He wass co-chair of the DTN Research Group in the IRTF from 2011 through 2016. In the IETF, was co-chair of the MMUSIC working group from 1997 through 2009 and co-chaired the SIP working group from its foundation in 1999 to October 2002. Jörg co-founded Tellique Kommunikationstechnik GmbH (1998), which provided solutions for IP multicast-based content distribution and performance enhancements for satellite and other challenged networks; Lysatiq GmbH (2007), which provided solutions for disconnection tolerance and performance optimizations for challenged networks and mobile Internet access; Spacetime Networks Oy (2013), which provides software solutions for enabling networking (not just) in challenging industrial environments; and NeMu ("Networked Multimedia") Dialogue Systems Oy (also:, which provides QoS and QoE monitoring and analysis for (interactive) (WebRTC-based) multimedia services.

Jörg is vice chair of IEEE Comsoc TCCC and is steering committee member of the ACM/ISOC Applied Networking Research Workshop (ANRW), the ACM CHANTS workshop, the ACM ICN conference, the IEEE Global Internet Symposium.  He was ACM SIGCOMM treasurer (2013 - 2017) and recently general co-chair of ACM MobiSys (2018) and ACM SIGCOMM (2012) and TPC co-chair of GI NetSys (2019), the ISOC/ACM/IRTF Applied Networking Research Workshop (2017), IFIP Networking (2016), and organizer of numerous workshops and Dagstuhl seminars.

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