Source note · SIP 488 and codec negotiation failures
For an accepted sendrecv, sendonly or recvonly stream the answer must list at least one media format that was in the offer, and may list additional formats not offered.
Checked 2026-09-25
- Vendor
- IETF
- Product
- SDP offer
- Subsystem
- answer generation
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3264
- Checked
- 2026-09-25
Sources
- RFC 3264 — An Offer/Answer Model with the Session Description Protocol (SDP) — IETF / RFC Editor · tier 1 standards and regulators · Section 6.1 Unicast Streams
Cite this note
APA
WarmTransfer. (2026, September 25). SIP 488 and codec negotiation failures: source note sip-488-codec-failures-answer-common-format. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-488-codec-failures-answer-common-format
BibTeX
@misc{warmtransfer-claim-sip-488-codec-failures-answer-common-format,
title = {SIP 488 and codec negotiation failures: source note sip-488-codec-failures-answer-common-format},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-488-codec-failures-answer-common-format},
note = {Source note sip-488-codec-failures-answer-common-format, checked 2026-09-25}
}