RFC 3959: The Early Session Disposition Type for the Session Initiation Protocol (SIP)

Publisher

IETF / RFC Editor

URL

https://www.rfc-editor.org/rfc/rfc3959.html

Published

2004-12-01

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

IETF Trust legal provisions; RFC text may be reproduced with attribution; short excerpts and locators only

Source notes citing this source

• RFC 3959 requires early-session bodies to follow the offer/answer model and allows them in the same messages as session bodies, with specified exceptions. in context
• RFC 3959 (Standards Track, December 2004) defines the early-session Content-Disposition type and a matching early-session option tag that a UA uses to show it understands that disposition type. in context

Cite this source record

APA

WarmTransfer. (2004, December 1). RFC 3959: The Early Session Disposition Type for the Session Initiation Protocol (SIP). WarmTransfer. https://warmtransfer.net/knowledge/sources/rfc-3959-early-session

BibTeX

@misc{warmtransfer-rfc-3959-early-session,
  title  = {RFC 3959: The Early Session Disposition Type for the Session Initiation Protocol (SIP)},
  author = {{WarmTransfer}},
  year   = {2004},
  url    = {https://warmtransfer.net/knowledge/sources/rfc-3959-early-session},
  note   = {IETF / RFC Editor, accessed 2026-09-24}
}