Cited in: RFC 3680

8 RFCs mentioned in the text of RFC 3680 (A Session Initiation Protocol (SIP) Event Package for Registrations)

RFC	Title	Status	Date
2119	Key words for use in RFCs to Indicate Requirement LevelsS. Bradner	Best Current Practice	March 1997
2141	URN SyntaxR. Moats · obsoleted by RFC 8141	Proposed Standard	May 1997
2648	A URN Namespace for IETF DocumentsR. Moats	Informational	August 1999
3023	XML Media TypesM. Murata, S. St. Laurent, D. Kohn · obsoleted by RFC 7303	Proposed Standard	January 2001
3261	SIP: Session Initiation ProtocolJ. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler	Proposed Standard	July 2002
3265	Session Initiation Protocol (SIP)-Specific Event NotificationA. B. Roach · obsoleted by RFC 6665	Proposed Standard	July 2002
3428	Session Initiation Protocol (SIP) Extension for Instant MessagingB. Campbell, Ed., J. Rosenberg, H. Schulzrinne, C. Huitema, D. Gurle	Proposed Standard	December 2002
3688	The IETF XML RegistryM. Mealling	Best Current Practice	January 2004