14. References

14.1. Normative References

• [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997, <http://www.rfc-editor.org/info/rfc2119>.

• [RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., Peterson, J., Sparks, R., Handley, M., and E. Schooler, "SIP: Session Initiation Protocol", RFC 3261, June 2002, <http://www.rfc-editor.org/info/rfc3261>.

• [RFC3515] Sparks, R., "The Session Initiation Protocol (SIP) Refer Method", RFC 3515, April 2003, <http://www.rfc-editor.org/info/rfc3515>.

• [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, January 2004, <http://www.rfc-editor.org/info/rfc3688>.

• [RFC3840] Rosenberg, J., Schulzrinne, H., and P. Kyzivat, "Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)", RFC 3840, August 2004, <http://www.rfc-editor.org/info/rfc3840>.

• [RFC3891] Mahy, R., Biggs, B., and R. Dean, "The Session Initiation Protocol (SIP) "Replaces" Header", RFC 3891, September 2004, <http://www.rfc-editor.org/info/rfc3891>.

• [RFC3903] Niemi, A., "Session Initiation Protocol (SIP) Extension for Event State Publication", RFC 3903, October 2004, <http://www.rfc-editor.org/info/rfc3903>.

• [RFC3911] Mahy, R. and D. Petrie, "The Session Initiation Protocol (SIP) "Join" Header", RFC 3911, October 2004, <http://www.rfc-editor.org/info/rfc3911>.

• [RFC3968] Camarillo, G., "The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP)", BCP 98, RFC 3968, December 2004, <http://www.rfc-editor.org/info/rfc3968>.

• [RFC4235] Rosenberg, J., Schulzrinne, H., and R. Mahy, "An INVITE- Initiated Dialog Event Package for the Session Initiation Protocol (SIP)", RFC 4235, November 2005, <http://www.rfc-editor.org/info/rfc4235>.

• [RFC5234] Crocker, D. and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", STD 68, RFC 5234, January 2008, <http://www.rfc-editor.org/info/rfc5234>.

• [RFC6665] Roach, A., "SIP-Specific Event Notification", RFC 6665, July 2012, <http://www.rfc-editor.org/info/rfc6665>.

• [RFC7462] Liess, L., Ed., Jesske, R., Johnston, A., Worley, D., and P. Kyzivat, "URNs for the Alert-Info Header Field of the Session Initiation Protocol (SIP)", RFC 7462, March 2015, <http://www.rfc-editor.org/info/rfc7462>.

14.2. Informative References

• [RFC3680] Rosenberg, J., "A Session Initiation Protocol (SIP) Event Package for Registrations", RFC 3680, March 2004, <http://www.rfc-editor.org/info/rfc3680>.

• [RFC4579] Johnston, A. and O. Levin, "Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents", BCP 119, RFC 4579, August 2006, <http://www.rfc-editor.org/info/rfc4579>.

• [RFC5359] Johnston, A., Sparks, R., Cunningham, C., Donovan, S., and K. Summers, "Session Initiation Protocol Service Examples", BCP 144, RFC 5359, October 2008, <http://www.rfc-editor.org/info/rfc5359>.

• [RFC7088] Worley, D., "Session Initiation Protocol Service Example -- Music on Hold", RFC 7088, February 2014, <http://www.rfc-editor.org/info/rfc7088>.