Binding law — in force
State the responsible business's registered name at the start of every AI-voice call and give a callback number (47 CFR 64.1200(b)(1)-(2); FCC 24-17)
All artificial or prerecorded voice telephone messages, which FCC 24-17 confirms include AI-generated voices (para. 9), must at the beginning state clearly the identity of the business, individual or other entity responsible for initiating the call, using the name under which a business is registered with the State Corporation Commission or comparable authority, and during or after the message state clearly a telephone number for it, not the autodialer's or a premium-rate number; for telemarketing that number must take do-not-call requests during business hours (47 CFR 64.1200(b)(1)-(2); 47 U.S.C. 227(d)(3)(A)). Detect outbound AI-voice call code with no configured caller identity or callback number.
Trust and provenance not reviewed by a lawyer · audit-grade · source verified 4 Oct 2026 · release 2026.10.05
- Lane
- Binding law — in force In force: applies since 8 Feb 2024
- Official source
- 47 CFR 64.1200(b)(1) · captured 4 Oct 2026 · anchor hash (SHA-256)
ea284453dbaa…· 5 more anchors in the data release - Verification
- Quoted text found word for word in the captured official document (4 Oct 2026). Source last verified 4 Oct 2026: checked against the captured official document; not in the weekly watcher's list; checked against the captured document.
- Data release
- Data release 2026.10.05, data as of 4 Oct 2026, schema 0.3.10.
- Legal review
- Not reviewed by a lawyer. TwinEthos derived this rule from the official text it cites: treat it as research to check against that text; it is not legal advice. No TwinEthos rule has been legally reviewed yet. Open questions for counsel on this rule: 1.
- Audit standard
- Audit-grade: meets all 10 checks of the TwinEthos audit standard that apply to it. The audit standard is TwinEthos's own quality bar for provenance, dates, applicability, detectors, fixtures, remediation and licences; it is not a legal review.
- Detectors
1 detector (code pattern), experimental: written from the rule's text and not yet measured for precision on real code, so treat a hit as a lead to verify.
Known limits:
- Opening line configured in the voice platform UI
- Identity spoken by a TwiML document served from another service
- The agent's first message may be set in the voice platform's dashboard or a prompt file outside the scanned code; check the configured opening. A company name constant used elsewhere suppresses the finding, so confirm i…
Who it applies to
- Duty falls on: any person
- Any person or entity whose telephone calls deliver an artificial or prerecorded voice message, including AI-generated or cloned voices and AI voice agents, to a called party in the United States, whether or not the call needed consent: every such message states the responsible entity's identity at its beginning and a callback telephone number during or after it. FCC 24-17 applies the rule to AI voices from 2024-02-08.
- Whether it applies depends on facts outside the code; a person has to decide.
The guard to add
Open every AI voice call with the registered business name and give a callback number during or after the message.
Keep the caller identity as configuration (REGISTERED_BUSINESS_NAME, CALLBACK_NUMBER) and build the voice agent's first message from it, so the agent's first utterance states who is responsible for the call; put the callback number (not the dialer's number, never a premium-rate number) in the script or closing, and for telemarketing make it a line that takes do-not-call requests during business hours. Prompt instructions alone are not enough: set the first message explicitly (Retell begin_message, Vapi firstMessage, ElevenLabs first_message, Twilio <Say> before the agent connects) so the model cannot skip it.
Where it goes: 1 application source code, 3 config and feature flags, 7 prompt construction, 14 user-facing text.
What this provision adds:
- Use the name the business is registered under with the State Corporation Commission or comparable authority, at the beginning of the message, and a callback number that is not the dialer's or a premium-rate number.
Example (Python + Retell AI), before:
agent = retell.agent.create(response_engine=ENGINE, voice_id=VOICE, begin_message='Hi! Do you have a minute?')After:
BUSINESS_NAME = 'Acme Dental Group LLC'
CALLBACK_NUMBER = '+1-555-0100'
agent = retell.agent.create(response_engine=ENGINE, voice_id=VOICE,
begin_message=f'Hello, this is an automated assistant calling on behalf of {BUSINESS_NAME}. You can reach us at {CALLBACK_NUMBER}.')Control: An AI or artificial-voice call does not state, at its start, who is responsible for the call, and does not give a callback telephone number. The same guard addresses 1 item with binding law in 1 jurisdiction. Engineering guidance, not legal advice.
Rule id us-fcc-tcpa-ai-voice.ai-voice-call-identifies-caller-and-callback-number · review status: primary source derived