None of the FCC texts reviewed requires an originating provider to give any particular call A attestation; they govern who decides attestation and what A and B require, so a customer cannot demand A as a regulatory right.
inferred · Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- FCC caller ID authentication rules
- Deployment
- carrier
- Region
- us
- Release range
- current as of 2026-10-02
- Status
- inferred
- Checked
- 2026-10-02
Sources
- Call Authentication Trust Anchor (Federal Register 2025-15809; FCC 24-120) — Office of the Federal Register via GovInfo · tier 1 standards and regulators · 90 FR 40244-40245
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-no-a-mandate. WarmTransfer. https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-no-a-mandate
BibTeX
@misc{warmtransfer-claim-stir-shaken-attestation-troubleshooting-no-a-mandate,
title = {Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-no-a-mandate},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-no-a-mandate},
note = {Source note stir-shaken-attestation-troubleshooting-no-a-mandate, checked 2026-10-02}
}