The IANA SIP Response Codes registry lists 404 Not Found and 484 Address Incomplete with RFC 3261 as the reference.
Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- SIP response code registry
- Deployment
- any
- Region
- not restricted
- Release range
- registry as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Session Initiation Protocol (SIP) Parameters — IANA · tier 1 standards and regulators · Response Codes registry, rows 404 and 484
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-iana-404-484-registered. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-iana-404-484-registered
BibTeX
@misc{warmtransfer-claim-sip-404-484-troubleshooting-iana-404-484-registered,
title = {Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-iana-404-484-registered},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-iana-404-484-registered},
note = {Source note sip-404-484-troubleshooting-iana-404-484-registered, checked 2026-10-02}
}