Cited in: RFC 4569

5 RFCs mentioned in the text of RFC 4569 (Internet Assigned Number Authority (IANA) Registration of the Message Media Feature Tag)

RFC	Title	Status	Date
2327	SDP: Session Description ProtocolM. Handley, V. Jacobson · obsoleted by RFC 4566	Proposed Standard	April 1998
2506	Media Feature Tag Registration ProcedureK. Holtman, A. Mutz, T. Hardie	Best Current Practice	March 1999
3261	SIP: Session Initiation ProtocolJ. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler	Proposed Standard	July 2002
3840	Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)J. Rosenberg, H. Schulzrinne, P. Kyzivat	Proposed Standard	August 2004
4566	SDP: Session Description ProtocolM. Handley, V. Jacobson, C. Perkins · obsoleted by RFC 8866	Proposed Standard	July 2006