RFC 6044 maps Diversion reason unconditional to History-Info cause 302, user-busy to 486 and no-answer to 408.
Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- Diversion
- Deployment
- multi-tenant, on-premises
- Region
- not restricted
- Release range
- RFC 6044
- Checked
- 2026-10-02
Sources
- Mapping and Interworking of Diversion Information between Diversion and History-Info Headers in SIP — IETF / RFC Editor · tier 1 standards and regulators · Section 5 (Diversion Header to History-Info Header), mapping table
Cite this note
APA
WarmTransfer. (2026, October 2). SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-diversion-cause-mapping. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-identity-headers-diversion-cause-mapping
BibTeX
@misc{warmtransfer-claim-sip-identity-headers-diversion-cause-mapping,
title = {SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-diversion-cause-mapping},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-identity-headers-diversion-cause-mapping},
note = {Source note sip-identity-headers-diversion-cause-mapping, checked 2026-10-02}
}