This document has been replaced by draft-itsumo-sipping-mobility-req-00.txt.
For more information or a copy of the document, contact the author directly.

Draft Author(s):

H. Schulzrinne: schulzrinne@cs.columbia.edu                                             
F. Vakil: farm@thumper.bellcore.com                                               
Y. Shobatake: masahata@comet.columbia.edu                                             
A. Dutta: adutta@research.telcordia.com                                           
J. Chen: JCCHEN@RESEARCH.TELCORDIA.COM