Henning Schulzrinne, Professor in the Department of Electrical
Engineering and chair of the Department of Computer Science at Columbia
University, New York.  PhD from the University of Massachusetts; worked
at Bell Laboratories, Murray Hill and GMD Fokus, Berlin.  Research
interests:  Internet multimedia and telephony services, signaling,
network quality of service, scheduling, multicast, performance
evaluation.  Co-author of the Internet standards-track protocols RTP,
RTSP, SIP, GIST and LoST.