Source note · SIP 488 and codec negotiation failures
RFC 3551 assigns static RTP payload types 0 to PCMU, 8 to PCMA, 9 to G722 and 18 to G729.
Checked 2026-09-25
- Vendor
- IETF
- Product
- RTP
- Subsystem
- payload types
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3551
- Checked
- 2026-09-25
Sources
- RTP Profile for Audio and Video Conferences with Minimal Control — IETF / RFC Editor · tier 1 standards and regulators · Section 6 Table 4
Cite this note
APA
WarmTransfer. (2026, September 25). SIP 488 and codec negotiation failures: source note sip-488-codec-failures-static-payload-types. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-488-codec-failures-static-payload-types
BibTeX
@misc{warmtransfer-claim-sip-488-codec-failures-static-payload-types,
title = {SIP 488 and codec negotiation failures: source note sip-488-codec-failures-static-payload-types},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-488-codec-failures-static-payload-types},
note = {Source note sip-488-codec-failures-static-payload-types, checked 2026-09-25}
}