rfc4508.txt:Orit Levin:microsoft:usa:6:may:2006:UNKNOWN:kwd,seccons:draft-ietf-sip-refer-feature-param:2006-03-02:2006-02-06:3:0:4:19:26:0:2003-6-20:746:draft-olson-sipping-refer-extensions:2005-07-06:215:2006-06-06:94 rfc4508.txt:Alan Johnston:avaya:usa:6:may:2006:UNKNOWN:kwd,seccons:draft-ietf-sip-refer-feature-param:2006-03-02:2006-02-06:3:0:4:19:26:0:2003-6-20:746:draft-olson-sipping-refer-extensions:2005-07-06:215:2006-06-06:94