Claim record · SIP response codes and failure interpretation
A 487 Request Terminated response means the original request was terminated by a BYE or CANCEL, and it is never sent as the response to a CANCEL request itself.
fact · verified 2026-09-04
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- sip
- Deployment
- not restricted
- Region
- not restricted
- Release range
- not restricted
- Status
- fact
- Confidence
- 0.95
- Verified
- 2026-09-04
Sources
- SIP: Session Initiation Protocol (RFC 3261) — IETF · tier 1 standards and regulators · section-21.4.25
Cite this claim
APA
WarmTransfer. (2026, September 4). SIP response codes and failure interpretation: claim sip-487-request-terminated. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-487-request-terminated
BibTeX
@misc{warmtransfer-claim-sip-487-request-terminated,
title = {SIP response codes and failure interpretation: claim sip-487-request-terminated},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-487-request-terminated},
note = {Claim sip-487-request-terminated, verified 2026-09-04}
}