Source note · SS7 and carrier interworking concepts
RFC 6432 recommends integrity protection (for example TLS or IPsec) for Reason headers carrying Q.850 codes because a wrong code could trigger the wrong announcement.
Checked 2026-09-24
- Vendor
- IETF
- Product
- SIP
- Subsystem
- Reason header security
- Deployment
- carrier, on-premises, multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- RFC 6432: Carrying Q.850 Codes in Reason Header Fields in SIP (Session Initiation Protocol) Responses — IETF / RFC Editor · tier 1 standards and regulators · Section 4 Security Considerations
Cite this note
APA
WarmTransfer. (2026, September 24). SS7 and carrier interworking concepts: source note ss7-carrier-interworking-reason-integrity. WarmTransfer. https://warmtransfer.net/knowledge/claims/ss7-carrier-interworking-reason-integrity
BibTeX
@misc{warmtransfer-claim-ss7-carrier-interworking-reason-integrity,
title = {SS7 and carrier interworking concepts: source note ss7-carrier-interworking-reason-integrity},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ss7-carrier-interworking-reason-integrity},
note = {Source note ss7-carrier-interworking-reason-integrity, checked 2026-09-24}
}