rfc1217.txt:Vint Cerf:cnri:usa:5:apr:1991:1::draft-ietf-sip-dtls-srtp-framework:2009-03-10:2008-09-23:24:0:130:18:172:4:2006-03-02:615:draft-fischl-sipping-media-dtls:2007-11-12:316:2010-05-12:427