SIP Research at Columbia University Henning Schulzrinne (with Kundan Singh, Jonathan Lennox and other members of the IRT lab) Dept. of Computer Science.
Ubiquitous SIP Henning Schulzrinne (with Stefan Berger, Stelios Sidiroglou, Kundan Singh, Xiaotao Wu, Weibin Zhao and the RPIDS authors) Columbia University.
