Source note · Branded calling and CNAM delivery
RFC 9795 defines an optional crn claim that carries a single string describing the reason for the call.
Checked 2026-09-24
- Vendor
- IETF
- Product
- STIR PASSporT
- Subsystem
- rich-call-data
- Deployment
- carrier-network
- Region
- not restricted
- Release range
- RFC 9795
- Checked
- 2026-09-24
Sources
- RFC 9795: Personal Assertion Token (PASSporT) Extension for Rich Call Data — IETF / RFC Editor · tier 1 standards and regulators · Section 7 (crn claim)
Cite this note
APA
WarmTransfer. (2026, September 24). Branded calling and CNAM delivery: source note branded-calling-cnam-crn-call-reason. WarmTransfer. https://warmtransfer.net/knowledge/claims/branded-calling-cnam-crn-call-reason
BibTeX
@misc{warmtransfer-claim-branded-calling-cnam-crn-call-reason,
title = {Branded calling and CNAM delivery: source note branded-calling-cnam-crn-call-reason},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/branded-calling-cnam-crn-call-reason},
note = {Source note branded-calling-cnam-crn-call-reason, checked 2026-09-24}
}