rfc4411.txt:James Polk:cisco:usa:21:feb:2006:UNKNOWN:figure,kwd,seccons,ianacons:draft-ietf-sipping-reason-header-for-preemption:2005-09-29:2004-09-14:356:0:5:19:380:2:2004-4-8:90:draft-polk-sipping-reason-header-for-preemption:2004-7-8:66:2006-03-01:157