This document has been replaced by draft-dcsgroup-sipping-arch-00.txt. For more information or a copy of the document, contact the author directly. Draft Author(s): K. Ramakrishnan: kkrama@research.att.com F. Andreasen: fandreas@telcordia.com D. Evans: n7dr@lucent.com M. Osman: M.Osman@Cablelabs.com