rfc55.txt:J. Newkirk:harvard:usa:22:jun:1970:19:figure:draft-ietf-sipcore-invfix:2010-07-01:2010-05-07:33:0:3:18:54:0:2007-06-26:806:draft-sparks-sip-invfix:2009-09-12:240:2010-09-30:89