Source note · SIP early offer and delayed offer
RFC 6337 acknowledges that its recommended behaviour for offers in response to offerless INVITEs is not always achievable, for example in some interworking scenarios.
Checked 2026-09-25
The behavior above is recommended, but it is not always achievable, for example, in some interworking scenarios.
- Vendor
- IETF
- Product
- SIP
- Subsystem
- offer-answer
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 6337 (Informational)
- Checked
- 2026-09-25
Sources
- RFC 6337: Session Initiation Protocol (SIP) Usage of the Offer/Answer Model — IETF / RFC Editor · tier 1 standards and regulators · Section 5.2.5 Subsequent Offers and Answers
Cite this note
APA
WarmTransfer. (2026, September 25). SIP early offer and delayed offer: source note sip-early-delayed-offer-rfc6337-interworking-limit. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-early-delayed-offer-rfc6337-interworking-limit
BibTeX
@misc{warmtransfer-claim-sip-early-delayed-offer-rfc6337-interworking-limit,
title = {SIP early offer and delayed offer: source note sip-early-delayed-offer-rfc6337-interworking-limit},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-early-delayed-offer-rfc6337-interworking-limit},
note = {Source note sip-early-delayed-offer-rfc6337-interworking-limit, checked 2026-09-25}
}