Cited in: RFC 4457

4 RFCs mentioned in the text of RFC 4457 (The Session Initiation Protocol (SIP) P-User-Database Private-Header (P-Header))

RFC	Title	Status	Date
3261	SIP: Session Initiation ProtocolJ. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler	Proposed Standard	July 2002
3427	Change Process for the Session Initiation Protocol (SIP)A. Mankin, S. Bradner, R. Mahy, D. Willis, J. Ott, B. Rosen · obsoleted by RFC 5727	Best Current Practice	December 2002
3588	Diameter Base ProtocolP. Calhoun, J. Loughney, E. Guttman, G. Zorn, J. Arkko · obsoleted by RFC 6733	Proposed Standard	September 2003
4234	Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell · obsoleted by RFC 5234	Draft Standard	October 2005