Attached is the paper the Tiphon liaison refers to. Paul Sijben -- Paul Sijben Telno:+ 31 35 687 4774 Fax:+31 35 687 5954 Lucent Technologies Home telno: +31 33 4557522 Forward Looking Work e-mail: sijben@lucent.com Huizen, The Netherlands http://hzsgp68.nl.lucent.com/