Source note · SIP trace capture and ladder analysis
RFC 3665 Sections 3.8 to 3.11 give reference flows for unsuccessful sessions: no answer, busy, no response from the user agent, and temporarily unavailable.
Checked 2026-09-23
- Vendor
- IETF
- Product
- SIP
- Subsystem
- call-flow-examples
- Deployment
- multi-tenant, on-premises
- Region
- not restricted
- Release range
- December 2003
- Checked
- 2026-09-23
Sources
- RFC 3665: Session Initiation Protocol (SIP) Basic Call Flow Examples — RFC Editor / IETF · tier 1 standards and regulators · Sections 3.8, 3.9, 3.10, 3.11
Cite this note
APA
WarmTransfer. (2026, September 23). SIP trace capture and ladder analysis: source note sip-trace-analysis-rfc3665-failure-flows. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trace-analysis-rfc3665-failure-flows
BibTeX
@misc{warmtransfer-claim-sip-trace-analysis-rfc3665-failure-flows,
title = {SIP trace capture and ladder analysis: source note sip-trace-analysis-rfc3665-failure-flows},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trace-analysis-rfc3665-failure-flows},
note = {Source note sip-trace-analysis-rfc3665-failure-flows, checked 2026-09-23}
}